{"id":52746,"date":"2020-06-09T14:46:13","date_gmt":"2020-06-09T13:46:13","guid":{"rendered":"https:\/\/groupe-reussite.fr\/?page_id=52746"},"modified":"2026-10-21T12:16:37","modified_gmt":"2026-10-21T11:16:37","slug":"cours-en-ligne-puissances","status":"publish","type":"page","link":"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-puissances\/","title":{"rendered":"Cours sur les puissances"},"content":{"rendered":"<div class=\"Latex_page\"><\/div>\n<div><\/div>\n<div class=\"Latex_page\">\n<section class=\"has_ae_slider elementor-element elementor-section-full_width elementor-reverse-mobile elementor-section-stretched elementor-section-height-default elementor-section-height-default ae-bg-gallery-type-default elementor-section elementor-top-section\">\n<div class=\"elementor-container elementor-column-gap-no\">\n<div class=\"elementor-row\">\n<div class=\"elementor-column-wrap elementor-element-populated colone_elementor\">\n<p style=\"text-align: justify;\">\t\t<div data-elementor-type=\"page\" data-elementor-id=\"86176\" class=\"elementor elementor-86176\">\n\t\t\t\t\t\t<section class=\"has_ae_slider elementor-section elementor-top-section elementor-element elementor-element-6f9fb2b3 elementor-section-content-bottom elementor-section-boxed elementor-section-height-default elementor-section-height-default ae-bg-gallery-type-default\" data-id=\"6f9fb2b3\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"has_ae_slider elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5032621c sticky_badeau_colone strick_col ae-bg-gallery-type-default\" data-id=\"5032621c\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"has_ae_slider elementor-section elementor-top-section elementor-element elementor-element-611bd75f elementor-section-boxed elementor-section-height-default elementor-section-height-default ae-bg-gallery-type-default\" data-id=\"611bd75f\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"has_ae_slider elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-55718945 strick_col ae-bg-gallery-type-default\" data-id=\"55718945\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5940f45c elementor-widget elementor-widget-heading\" data-id=\"5940f45c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-tage-mage\/\">Cours en ligne Tage Mage <\/a><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f9bc725 elementor-widget elementor-widget-heading\" data-id=\"f9bc725\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Chapitres du sous-test 2 du Tage Mage<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-56c02cf0 elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"56c02cf0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-fractions\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Fractions<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-390da5ff elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"390da5ff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-pourcentages\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Pourcentages<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-da8d658 elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"da8d658\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-exercices-corriges-algebre\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Alg\u00e8bre<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-490ac2aa elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"490ac2aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-figures-geometriques\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">G\u00e9om\u00e9trie<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3fd40310 elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"3fd40310\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-vitesse\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Vitesse<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6edf1c7e elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"6edf1c7e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-arithmetique\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Arithm\u00e9tique<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4f2c805 elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"4f2c805\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-puissances\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Puissances<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-447b658 elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"447b658\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-regle-de-trois\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Proportionnalit\u00e9<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53863aa elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"53863aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-denombrement\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">D\u00e9nombrement<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-11741389 elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"11741389\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-probabilites\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Probabilit\u00e9s<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ace8ace elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"6ace8ace\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-moyenne-arithmetique-moyenne-ponderee\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Moyenne<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13f1db2f elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"13f1db2f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-theoreme-de-pythagore\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Th\u00e9or\u00e8me de Pythagore<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-10d04684 elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"10d04684\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-theoreme-de-thales\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Th\u00e9or\u00e8me de Thal\u00e8s<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-691a3a8a elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"691a3a8a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-racines-carrees\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Racines Carr\u00e9es<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2a5f7bd6 elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"2a5f7bd6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/groupe-reussite.fr\/nous-contacter\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">CONTACTEZ-NOUS<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t\n<\/div>\n<div class=\"elementor-column-wrap elementor-element-populated colone_latex\" style=\"text-align: justify;\">\n<div class=\"style_pag\" style=\"color: #000; font-family: 'Lato', Sans-serif;\">\n<div class=\"elementor-text-editor elementor-clearfix\" style=\"color: #000000; font-family: Lato, sans-serif;\">\n<h1 class=\"Latex_page_title\" style=\"text-align: center;\">Cours sur les puissances : r\u00e8gles de calcul, formules et puissances de 10<\/h1>\n<p><em>Par Seda Biber, mis \u00e0 jour le 20\/10\/2026<\/em><\/p>\n<\/div>\n<p class=\"colone_latex_ancres\" style=\"color: #000000; font-family: Lato, sans-serif; text-align: center;\"><a href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-puissances\/\">R\u00e9sum\u00e9 de cours<\/a> <a href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-exercices-corriges-puissances\/\">Exercices et corrig\u00e9s<\/a><\/p>\n<p class=\"colone_latex_ancres\" style=\"color: #000000; font-family: Lato, sans-serif; text-align: center;\"><a href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-tage-mage\/\">Cours en ligne du Tage Mage<\/a><\/p>\n<p>Une puissance est un produit de facteurs tous \u00e9gaux : <img decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-b751ff51978b53eb429c5b8d4c8b07f7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#110;&#32;&#61;&#32;&#97;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#97;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#92;&#100;&#111;&#116;&#115;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#97;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"156\" style=\"vertical-align: 0px;\"\/>, avec n facteurs. Pour calculer avec des puissances d&rsquo;un m\u00eame nombre, on applique trois r\u00e8gles : pour multiplier, on additionne les exposants (<img decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-a906a5b28873897b65f8460fd6da43e2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#110;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#97;&#94;&#109;&#32;&#61;&#32;&#97;&#94;&#123;&#110;&#43;&#109;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"14\" width=\"126\" style=\"vertical-align: 0px;\"\/>) ; pour diviser, on soustrait les exposants (<img decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-254541a73528beaf05443163e7fe3c81_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#97;&#94;&#110;&#125;&#123;&#97;&#94;&#109;&#125;&#32;&#61;&#32;&#97;&#94;&#123;&#110;&#45;&#109;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"88\" style=\"vertical-align: -12px;\"\/>) ; pour \u00e9lever une puissance \u00e0 une puissance, on multiplie les exposants (<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-0362513d12c5f147dd5a9bb4f3d701a0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#97;&#94;&#110;&#41;&#94;&#109;&#32;&#61;&#32;&#97;&#94;&#123;&#110;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#109;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"108\" style=\"vertical-align: -5px;\"\/>). Il n&rsquo;existe pas de r\u00e8gle pour additionner des puissances. Ces r\u00e8gles servent au coll\u00e8ge, au lyc\u00e9e et dans les \u00e9preuves de calcul du <a href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-tage-mage\/\">Tage Mage<\/a>. Si les puissances vous posent probl\u00e8me, des <a href=\"https:\/\/groupe-reussite.fr\/cours-particuliers\/maths\/tous-niveaux\/france\/\">cours particuliers de maths<\/a> ou un <a href=\"https:\/\/groupe-reussite.fr\/stages\/maths\/tous-niveaux\/france\/toutes-periodes\/\">stage de maths pendant les vacances<\/a> permettent de reprendre les bases.<\/p>\n<p>Ce cours fait partie des fiches en ligne de Groupe R\u00e9ussite. Ces fiches sont r\u00e9dig\u00e9es par l&rsquo;\u00e9quipe qui organise nos <a href=\"https:\/\/groupe-reussite.fr\/cours-particuliers\/toutes-matieres\/tous-niveaux\/france\/\">cours particuliers<\/a> \u00e0 domicile et nos <a href=\"https:\/\/groupe-reussite.fr\/cours-en-ligne\/toutes-matieres\/tous-niveaux\/france\/\">cours particuliers en ligne<\/a>. Vous \u00eates \u00e9tudiant ou enseignant et vous ma\u00eetrisez ces notions ? Vous pouvez <a href=\"https:\/\/groupe-reussite.fr\/donner-cours-particuliers\/\">donner des cours particuliers<\/a> avec nous.<\/p>\n<h2>R\u00e9sum\u00e9 : les r\u00e8gles de calcul des puissances<\/h2>\n<p>Dans ce tableau, a et b sont des nombres non nuls, n et m des nombres entiers relatifs.<\/p>\n<table class=\"table\" style=\"width: 100%; border-color: #0F2742; color: #0f2742; background: #ffffff;\">\n<tbody>\n<tr>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>R\u00e8gle<\/strong><\/td>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>Formule<\/strong><\/td>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>Exemple<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">Exposant 1<\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-6439a05a745903e0f7a3adafb020ef6f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#49;&#32;&#61;&#32;&#97;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"50\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-52090dc2d3b29e52151aca7a980065f2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#55;&#94;&#49;&#32;&#61;&#32;&#55;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"49\" style=\"vertical-align: 0px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">Exposant 0<\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-a709cddbe12f9ca3b9f4385fd23d367d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#48;&#32;&#61;&#32;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"49\" style=\"vertical-align: -1px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-0cc4756ea3421a9c01cd4a606236ef8a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#53;&#94;&#48;&#32;&#61;&#32;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"48\" style=\"vertical-align: 0px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">Produit de deux puissances d&rsquo;un m\u00eame nombre<\/td>\n<td style=\"border: 1px solid #0F2742;\"><img decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-a906a5b28873897b65f8460fd6da43e2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#110;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#97;&#94;&#109;&#32;&#61;&#32;&#97;&#94;&#123;&#110;&#43;&#109;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"14\" width=\"126\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-f12ada758c7e90a1ac0010fecc5e4e00_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#94;&#52;&#32;&#61;&#32;&#50;&#94;&#55;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"94\" style=\"vertical-align: 0px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">Quotient de deux puissances d&rsquo;un m\u00eame nombre<\/td>\n<td style=\"border: 1px solid #0F2742;\"><img decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-254541a73528beaf05443163e7fe3c81_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#97;&#94;&#110;&#125;&#123;&#97;&#94;&#109;&#125;&#32;&#61;&#32;&#97;&#94;&#123;&#110;&#45;&#109;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"88\" style=\"vertical-align: -12px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-d87aef163ee67fa0a7a259b11ce35c94_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#53;&#94;&#54;&#125;&#123;&#53;&#94;&#50;&#125;&#32;&#61;&#32;&#53;&#94;&#52;\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"58\" style=\"vertical-align: -12px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">Puissance d&rsquo;une puissance<\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-0362513d12c5f147dd5a9bb4f3d701a0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#97;&#94;&#110;&#41;&#94;&#109;&#32;&#61;&#32;&#97;&#94;&#123;&#110;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#109;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"108\" style=\"vertical-align: -5px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-54ba4ae0a0e0c3b9b196377671d5b001_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#51;&#94;&#50;&#41;&#94;&#52;&#32;&#61;&#32;&#51;&#94;&#56;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"77\" style=\"vertical-align: -5px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">Puissance d&rsquo;un produit<\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-3601a85a446ddafc46cf9bcbf4263a2c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#97;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#98;&#41;&#94;&#110;&#32;&#61;&#32;&#97;&#94;&#110;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#98;&#94;&#110;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"140\" style=\"vertical-align: -5px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-61823ae0d728fe123c2281fba50070d5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#53;&#41;&#94;&#51;&#32;&#61;&#32;&#50;&#94;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#53;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"138\" style=\"vertical-align: -5px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">Puissance d&rsquo;un quotient<\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-80f31f53cea4740cd0d82f8e51d167ea_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#108;&#101;&#102;&#116;&#40;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#97;&#125;&#123;&#98;&#125;&#92;&#114;&#105;&#103;&#104;&#116;&#41;&#94;&#110;&#32;&#61;&#32;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#97;&#94;&#110;&#125;&#123;&#98;&#94;&#110;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"85\" style=\"vertical-align: -12px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-8b818395defa587bd57fced3a82ffbb4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#108;&#101;&#102;&#116;&#40;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#50;&#125;&#123;&#51;&#125;&#92;&#114;&#105;&#103;&#104;&#116;&#41;&#94;&#50;&#32;&#61;&#32;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#52;&#125;&#123;&#57;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"47\" width=\"78\" style=\"vertical-align: -17px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">Exposant n\u00e9gatif<\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-1f36a09d22617ceeed381c3d479672e0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#123;&#45;&#110;&#125;&#32;&#61;&#32;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#97;&#94;&#110;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"74\" style=\"vertical-align: -12px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-40b87316511d6d7a1f50a37c2212a3e2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#51;&#125;&#32;&#61;&#32;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#49;&#48;&#94;&#51;&#125;&#32;&#61;&#32;&#48;&#123;&#44;&#125;&#48;&#48;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"151\" style=\"vertical-align: -12px;\"\/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"style_pag\" style=\"color: #000; font-family: 'Lato', Sans-serif;\">\n\t\t<div data-elementor-type=\"section\" data-elementor-id=\"186409\" class=\"elementor elementor-186409\">\n\t\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t\t<section class=\"has_ae_slider elementor-section elementor-inner-section elementor-element elementor-element-208557d4 elementor-section-content-bottom full_width elementor-section-full_width elementor-section-height-min-height elementor-section-height-default ae-bg-gallery-type-default\" data-id=\"208557d4\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;gradient&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-narrow\">\n\t\t\t\t\t<div class=\"has_ae_slider elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-5c1307a9 ae-bg-gallery-type-default\" data-id=\"5c1307a9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a42a1b elementor-widget elementor-widget-heading\" data-id=\"a42a1b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">AVOIR LES MEILLEURS PROFS DE MATHS<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53b6892b elementor-widget elementor-widget-heading\" data-id=\"53b6892b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">C'est gagner en autonomie<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-339aefc1 elementor-align-left elementor-mobile-align-center elementor-widget elementor-widget-button\" data-id=\"339aefc1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/groupe-reussite.fr\/cours-particuliers\/maths\/tous-niveaux\/france\/\" target=\"_blank\" id=\"CTA_PRD_CP\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Cours de maths particulier<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"has_ae_slider elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-461d5d63 ae-bg-gallery-type-default\" data-id=\"461d5d63\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\n<h2>Qu&rsquo;est-ce qu&rsquo;une puissance d&rsquo;un nombre ?<\/h2>\n<p>Pour un nombre a et un entier n sup\u00e9rieur ou \u00e9gal \u00e0 2, la puissance n<sup>e<\/sup> de a est le produit de n facteurs \u00e9gaux \u00e0 a :<\/p>\n<p class=\"ql-center-displayed-equation\" style=\"line-height: 39px;\"><span class=\"ql-right-eqno\"> &nbsp; <\/span><span class=\"ql-left-eqno\"> &nbsp; <\/span><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-8b73ca2165dc2ea036a32cc8962f462d_l3.png\" height=\"39\" width=\"157\" class=\"ql-img-displayed-equation quicklatex-auto-format\" alt=\"&#92;&#091;&#32;&#97;&#94;&#110;&#32;&#61;&#32;&#92;&#117;&#110;&#100;&#101;&#114;&#98;&#114;&#97;&#99;&#101;&#123;&#97;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#97;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#92;&#100;&#111;&#116;&#115;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#97;&#125;&#95;&#123;&#110;&#32;&#92;&#116;&#101;&#120;&#116;&#123;&#32;&#102;&#97;&#99;&#116;&#101;&#117;&#114;&#115;&#125;&#125;&#32;&#92;&#093;\" title=\"Rendered by QuickLaTeX.com\"\/><\/p>\n<p>On lit <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-72ccb5bdd2e3f8e22fd9f89374a3a0cb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#110;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"17\" style=\"vertical-align: 0px;\"\/> \u00ab a puissance n \u00bb ou \u00ab a exposant n \u00bb. Le nombre a s&rsquo;appelle la <strong>base<\/strong> et n s&rsquo;appelle l&rsquo;<strong>exposant<\/strong>. Par exemple, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-b07cc4e551b0e1402c745a427b1b692c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#53;&#32;&#61;&#32;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#32;&#61;&#32;&#51;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"212\" style=\"vertical-align: 0px;\"\/> : la base est 2 et l&rsquo;exposant est 5.<\/p>\n<ul>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-062e6b90a0da4787460d4a5d0845624c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"16\" style=\"vertical-align: 0px;\"\/> se lit \u00ab a au carr\u00e9 \u00bb : c&rsquo;est l&rsquo;aire d&rsquo;un carr\u00e9 de c\u00f4t\u00e9 a, d&rsquo;o\u00f9 son nom.<\/li>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e3165a95804cff20b04a27af345935e2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"16\" style=\"vertical-align: 0px;\"\/> se lit \u00ab a au cube \u00bb : c&rsquo;est le volume d&rsquo;un cube d&rsquo;ar\u00eate a.<\/li>\n<li>Par convention, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-6439a05a745903e0f7a3adafb020ef6f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#49;&#32;&#61;&#32;&#97;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"50\" style=\"vertical-align: 0px;\"\/> et, si a n&rsquo;est pas nul, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-a709cddbe12f9ca3b9f4385fd23d367d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#48;&#32;&#61;&#32;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"49\" style=\"vertical-align: -1px;\"\/>.<\/li>\n<\/ul>\n<p>Les carr\u00e9s reviennent dans de nombreux chapitres, par exemple avec le <a href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-theoreme-de-pythagore\/\">th\u00e9or\u00e8me de Pythagore<\/a>, et l&rsquo;op\u00e9ration inverse du carr\u00e9 est la <a href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-racines-carrees\/\">racine carr\u00e9e<\/a> : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-8fbca32c52a64cc209676177f2e994ed_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#115;&#113;&#114;&#116;&#123;&#50;&#53;&#125;&#32;&#61;&#32;&#53;\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"63\" style=\"vertical-align: -2px;\"\/> car <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-758c2e29f4c6eec9e5ec1e8a29828c19_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#53;&#94;&#50;&#32;&#61;&#32;&#50;&#53;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"57\" style=\"vertical-align: 0px;\"\/>.<\/p>\n<h3>Pourquoi un nombre puissance 0 est-il \u00e9gal \u00e0 1 ?<\/h3>\n<p>Prenons les puissances de 2 et divisons par 2 \u00e0 chaque \u00e9tape : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-ab93a89931e9ac06e3c41c7f8f34f7be_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#51;&#32;&#61;&#32;&#56;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"49\" style=\"vertical-align: 0px;\"\/>, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-44675cbac783c8e9130cdd4b382106f8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#50;&#32;&#61;&#32;&#52;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"49\" style=\"vertical-align: 0px;\"\/>, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-cd78051f90949e9e0012c984e8b98d80_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#49;&#32;&#61;&#32;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"48\" style=\"vertical-align: 0px;\"\/>. En divisant encore par 2, on obtient <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e657474214f4e07a8ac01155c69cc9a6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#48;&#32;&#61;&#32;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"48\" style=\"vertical-align: 0px;\"\/>. La r\u00e8gle du quotient donne le m\u00eame r\u00e9sultat : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-3064f28e9307259d1057fde56d0f3820_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#50;&#94;&#51;&#125;&#123;&#50;&#94;&#51;&#125;&#32;&#61;&#32;&#50;&#94;&#123;&#51;&#45;&#51;&#125;&#32;&#61;&#32;&#50;&#94;&#48;\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"116\" style=\"vertical-align: -12px;\"\/>, et un nombre divis\u00e9 par lui-m\u00eame vaut 1. Ainsi <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-1d69401351cb298df7823e2cf8bd5116_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#48;&#32;&#61;&#32;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"56\" style=\"vertical-align: 0px;\"\/>, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-8f54d7b113051c549fb28274f91ade4d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#55;&#94;&#48;&#32;&#61;&#32;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"48\" style=\"vertical-align: 0px;\"\/> et <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e45188187defa563bf7ac7eb41e2c5c8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#94;&#48;&#32;&#61;&#32;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"47\" style=\"vertical-align: 0px;\"\/>. Le cas <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-dfc1e32d3dc765b27701a8576e765fc6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#48;&#94;&#48;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"16\" style=\"vertical-align: 0px;\"\/> n&rsquo;est pas \u00e9tudi\u00e9 au coll\u00e8ge.<\/p>\n<h3>Le signe d&rsquo;une puissance d&rsquo;un nombre n\u00e9gatif<\/h3>\n<p>Les parenth\u00e8ses changent le r\u00e9sultat :<\/p>\n<ul>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-021d5ad270e30b2c4b868df0b63901c6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#45;&#50;&#41;&#94;&#52;&#32;&#61;&#32;&#40;&#45;&#50;&#41;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#40;&#45;&#50;&#41;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#40;&#45;&#50;&#41;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#40;&#45;&#50;&#41;&#32;&#61;&#32;&#49;&#54;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"319\" style=\"vertical-align: -5px;\"\/> : la base est \u22122 ;<\/li>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-8f64be0b87a77e98602f44660a8bc2b7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#45;&#50;&#94;&#52;&#32;&#61;&#32;&#45;&#40;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#41;&#32;&#61;&#32;&#45;&#49;&#54;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"237\" style=\"vertical-align: -5px;\"\/> : la base est 2, et le signe moins s&rsquo;applique au r\u00e9sultat.<\/li>\n<\/ul>\n<p>Une puissance d&rsquo;un nombre n\u00e9gatif est positive si l&rsquo;exposant est pair, n\u00e9gative si l&rsquo;exposant est impair : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-0554a818e43596140b7b4f5f50b292c0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#45;&#51;&#41;&#94;&#50;&#32;&#61;&#32;&#57;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"76\" style=\"vertical-align: -5px;\"\/> mais <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-32645ead40c7f54ae461eb27db85f140_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#45;&#51;&#41;&#94;&#51;&#32;&#61;&#32;&#45;&#50;&#55;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"99\" style=\"vertical-align: -5px;\"\/>.<\/p>\n<h2>Comment calculer une puissance ?<\/h2>\n<p>Pour calculer <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-72ccb5bdd2e3f8e22fd9f89374a3a0cb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#110;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"17\" style=\"vertical-align: 0px;\"\/>, on multiplie a par lui-m\u00eame autant de fois que l&rsquo;indique l&rsquo;exposant : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-c25e75d62216325d2c911411942f14a2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#51;&#94;&#52;&#32;&#61;&#32;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#51;&#32;&#61;&#32;&#56;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"181\" style=\"vertical-align: 0px;\"\/>. Attention, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-1e58f2f0bb484d1845e4f4dfdd51f7f5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#51;&#94;&#52;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"16\" style=\"vertical-align: 0px;\"\/> n&rsquo;est pas \u00e9gal \u00e0 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-33d4738a21d7a22caa9d32267f09ba3c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#52;&#32;&#61;&#32;&#49;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"80\" style=\"vertical-align: 0px;\"\/>.<\/p>\n<p>Sur une calculatrice, on utilise la touche ^ (ou <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-113f44bca5ff185328885404c0384d80_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#120;&#94;&#121;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"17\" style=\"vertical-align: 0px;\"\/>, ou <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-eae72d380a3dcdc3f01d485268aa6bfc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#120;&#94;&#92;&#115;&#113;&#117;&#97;&#114;&#101;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"20\" style=\"vertical-align: 0px;\"\/> selon les mod\u00e8les) : pour <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-1e58f2f0bb484d1845e4f4dfdd51f7f5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#51;&#94;&#52;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"16\" style=\"vertical-align: 0px;\"\/>, on tape 3 ^ 4. Dans un calcul, les puissances sont prioritaires sur la multiplication et l&rsquo;addition : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-94e96171d711b05e5c6fcab052f7ee19_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#32;&#43;&#32;&#51;&#94;&#50;&#32;&#61;&#32;&#50;&#32;&#43;&#32;&#57;&#32;&#61;&#32;&#49;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"151\" style=\"vertical-align: -2px;\"\/> et <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-c0e7c05e502f88b9322ed5d46bc7d27e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#53;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#94;&#51;&#32;&#61;&#32;&#53;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#56;&#32;&#61;&#32;&#52;&#48;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"152\" style=\"vertical-align: 0px;\"\/>.<\/p>\n<h3>Les puissances \u00e0 conna\u00eetre par c\u0153ur<\/h3>\n<p>Le programme de 5<sup>e<\/sup> demande de conna\u00eetre les carr\u00e9s des entiers de 0 \u00e0 12 et le cube de 10. Les premi\u00e8res puissances de 2 sont aussi tr\u00e8s utiles en calcul mental.<\/p>\n<table class=\"table\" style=\"width: 100%; border-color: #0F2742; color: #0f2742; background: #ffffff;\">\n<tbody>\n<tr>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>n<\/strong><\/td>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-a715fc0f84b8bee4928e92097d5eabfc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#110;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"18\" style=\"vertical-align: 0px;\"\/><\/strong><\/td>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-d7ed1f91bf5174d7cd3754e0d1c8fef2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#110;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"18\" style=\"vertical-align: 0px;\"\/><\/strong><\/td>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e4249a2b3de09582eb567b98f8cd62b1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#110;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"17\" style=\"vertical-align: 0px;\"\/><\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">1<\/td>\n<td style=\"border: 1px solid #0F2742;\">1<\/td>\n<td style=\"border: 1px solid #0F2742;\">1<\/td>\n<td style=\"border: 1px solid #0F2742;\">2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">2<\/td>\n<td style=\"border: 1px solid #0F2742;\">4<\/td>\n<td style=\"border: 1px solid #0F2742;\">8<\/td>\n<td style=\"border: 1px solid #0F2742;\">4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">3<\/td>\n<td style=\"border: 1px solid #0F2742;\">9<\/td>\n<td style=\"border: 1px solid #0F2742;\">27<\/td>\n<td style=\"border: 1px solid #0F2742;\">8<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">4<\/td>\n<td style=\"border: 1px solid #0F2742;\">16<\/td>\n<td style=\"border: 1px solid #0F2742;\">64<\/td>\n<td style=\"border: 1px solid #0F2742;\">16<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">5<\/td>\n<td style=\"border: 1px solid #0F2742;\">25<\/td>\n<td style=\"border: 1px solid #0F2742;\">125<\/td>\n<td style=\"border: 1px solid #0F2742;\">32<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">6<\/td>\n<td style=\"border: 1px solid #0F2742;\">36<\/td>\n<td style=\"border: 1px solid #0F2742;\">216<\/td>\n<td style=\"border: 1px solid #0F2742;\">64<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">7<\/td>\n<td style=\"border: 1px solid #0F2742;\">49<\/td>\n<td style=\"border: 1px solid #0F2742;\">343<\/td>\n<td style=\"border: 1px solid #0F2742;\">128<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">8<\/td>\n<td style=\"border: 1px solid #0F2742;\">64<\/td>\n<td style=\"border: 1px solid #0F2742;\">512<\/td>\n<td style=\"border: 1px solid #0F2742;\">256<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">9<\/td>\n<td style=\"border: 1px solid #0F2742;\">81<\/td>\n<td style=\"border: 1px solid #0F2742;\">729<\/td>\n<td style=\"border: 1px solid #0F2742;\">512<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">10<\/td>\n<td style=\"border: 1px solid #0F2742;\">100<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 000<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 024<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">11<\/td>\n<td style=\"border: 1px solid #0F2742;\">121<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 331<\/td>\n<td style=\"border: 1px solid #0F2742;\">2 048<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">12<\/td>\n<td style=\"border: 1px solid #0F2742;\">144<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 728<\/td>\n<td style=\"border: 1px solid #0F2742;\">4 096<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Les puissances servent aussi \u00e0 compter : un code \u00e0 4 chiffres, o\u00f9 chaque chiffre va de 0 \u00e0 9, offre <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-5ad379983618875e601a13d3985ad247_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#52;&#32;&#61;&#32;&#49;&#48;&#92;&#44;&#48;&#48;&#48;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"96\" style=\"vertical-align: 0px;\"\/> possibilit\u00e9s. Ce raisonnement est d\u00e9velopp\u00e9 dans le cours de <a href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-denombrement\/\">d\u00e9nombrement<\/a>.<\/p>\n<h2>Quelles sont les r\u00e8gles de calcul des puissances ?<\/h2>\n<p>Les r\u00e8gles qui suivent s&rsquo;appliquent \u00e0 des nombres a et b non nuls et \u00e0 des exposants entiers n et m. Elles se retrouvent toutes en revenant \u00e0 la d\u00e9finition : il suffit de compter les facteurs.<\/p>\n<h3>Multiplier deux puissances d&rsquo;un m\u00eame nombre<\/h3>\n<p>On garde la base et on additionne les exposants : <img decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-a906a5b28873897b65f8460fd6da43e2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#110;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#97;&#94;&#109;&#32;&#61;&#32;&#97;&#94;&#123;&#110;&#43;&#109;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"14\" width=\"126\" style=\"vertical-align: 0px;\"\/>.<\/p>\n<p>Exemple : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-d0a4422149d906925f0a5816ae6216ea_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#94;&#52;&#32;&#61;&#32;&#40;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#41;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#40;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#41;&#32;&#61;&#32;&#50;&#94;&#55;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"338\" style=\"vertical-align: -5px;\"\/>. On compte 3 + 4 = 7 facteurs.<\/p>\n<p>Autre exemple : le double de <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-311ca1475c6fcdb9b41d52807cfe2743_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#123;&#49;&#49;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"22\" style=\"vertical-align: 0px;\"\/> est <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-870cd380b69168eaf886624c10c51294_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#94;&#123;&#49;&#49;&#125;&#32;&#61;&#32;&#50;&#94;&#49;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#94;&#123;&#49;&#49;&#125;&#32;&#61;&#32;&#50;&#94;&#123;&#49;&#50;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"186\" style=\"vertical-align: 0px;\"\/>.<\/p>\n<h3>Diviser deux puissances d&rsquo;un m\u00eame nombre<\/h3>\n<p>On garde la base et on soustrait les exposants : <img decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-254541a73528beaf05443163e7fe3c81_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#97;&#94;&#110;&#125;&#123;&#97;&#94;&#109;&#125;&#32;&#61;&#32;&#97;&#94;&#123;&#110;&#45;&#109;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"88\" style=\"vertical-align: -12px;\"\/>.<\/p>\n<p>Exemple : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-284ac3e75db86de6ed6358dfe610f398_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#53;&#94;&#54;&#125;&#123;&#53;&#94;&#50;&#125;&#32;&#61;&#32;&#53;&#94;&#123;&#54;&#45;&#50;&#125;&#32;&#61;&#32;&#53;&#94;&#52;\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"116\" style=\"vertical-align: -12px;\"\/>, car on simplifie deux facteurs 5 en haut et en bas.<\/p>\n<p>Autre exemple : le tiers de <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-a546f4a8058ec587bbe99084df38b153_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#51;&#94;&#123;&#49;&#50;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"23\" style=\"vertical-align: 0px;\"\/> est <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-2b6aa8d4a9ae1b1fea783a7e925c7f22_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#51;&#94;&#123;&#49;&#50;&#125;&#125;&#123;&#51;&#125;&#32;&#61;&#32;&#51;&#94;&#123;&#49;&#50;&#45;&#49;&#125;&#32;&#61;&#32;&#51;&#94;&#123;&#49;&#49;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"136\" style=\"vertical-align: -12px;\"\/>.<\/p>\n<h3>Calculer la puissance d&rsquo;une puissance<\/h3>\n<p>On garde la base et on multiplie les exposants : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-0362513d12c5f147dd5a9bb4f3d701a0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#97;&#94;&#110;&#41;&#94;&#109;&#32;&#61;&#32;&#97;&#94;&#123;&#110;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#109;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"108\" style=\"vertical-align: -5px;\"\/>.<\/p>\n<p>Exemple : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-99226f527d1c20ab6e96796db2a4c7fa_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#51;&#94;&#50;&#41;&#94;&#52;&#32;&#61;&#32;&#51;&#94;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#51;&#94;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#51;&#94;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#51;&#94;&#50;&#32;&#61;&#32;&#51;&#94;&#123;&#50;&#43;&#50;&#43;&#50;&#43;&#50;&#125;&#32;&#61;&#32;&#51;&#94;&#56;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"324\" style=\"vertical-align: -5px;\"\/>.<\/p>\n<p>Cette r\u00e8gle permet de changer de base. Comme <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-9f9e25e6eaaab0ef41dace4e0441a3c6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#55;&#32;&#61;&#32;&#51;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"57\" style=\"vertical-align: 0px;\"\/>, on a <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-8ed7d7e80ddc8e17707f8138bc32fb71_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#55;&#94;&#53;&#32;&#61;&#32;&#40;&#51;&#94;&#51;&#41;&#94;&#53;&#32;&#61;&#32;&#51;&#94;&#123;&#49;&#53;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"134\" style=\"vertical-align: -5px;\"\/>.<\/p>\n<h3>Calculer la puissance d&rsquo;un produit ou d&rsquo;un quotient<\/h3>\n<p>L&rsquo;exposant s&rsquo;applique \u00e0 chaque facteur : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-3601a85a446ddafc46cf9bcbf4263a2c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#97;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#98;&#41;&#94;&#110;&#32;&#61;&#32;&#97;&#94;&#110;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#98;&#94;&#110;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"140\" style=\"vertical-align: -5px;\"\/> et <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-80f31f53cea4740cd0d82f8e51d167ea_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#108;&#101;&#102;&#116;&#40;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#97;&#125;&#123;&#98;&#125;&#92;&#114;&#105;&#103;&#104;&#116;&#41;&#94;&#110;&#32;&#61;&#32;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#97;&#94;&#110;&#125;&#123;&#98;&#94;&#110;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"85\" style=\"vertical-align: -12px;\"\/>.<\/p>\n<ul>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-6a095bb640a42e0103b4fb40c10be1d8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#53;&#41;&#94;&#51;&#32;&#61;&#32;&#50;&#94;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#53;&#94;&#51;&#32;&#61;&#32;&#56;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#49;&#50;&#53;&#32;&#61;&#32;&#49;&#92;&#44;&#48;&#48;&#48;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"282\" style=\"vertical-align: -5px;\"\/>, et l&rsquo;on v\u00e9rifie que <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-aef84b8cd99040e399a4aa14a51c5ad5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#51;&#32;&#61;&#32;&#49;&#92;&#44;&#48;&#48;&#48;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"87\" style=\"vertical-align: 0px;\"\/>.<\/li>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-3b7c69a022afbe546db5269348ed3e43_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#51;&#53;&#94;&#52;&#32;&#61;&#32;&#40;&#53;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#55;&#41;&#94;&#52;&#32;&#61;&#32;&#53;&#94;&#52;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#55;&#94;&#52;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"188\" style=\"vertical-align: -5px;\"\/>. Cette \u00e9criture sert \u00e0 d\u00e9composer un nombre en produit de facteurs premiers, une m\u00e9thode vue en <a href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-arithmetique\/\">arithm\u00e9tique<\/a>.<\/li>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-9562a7319c0195c6bae78ff8d247c0c8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#108;&#101;&#102;&#116;&#40;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#50;&#125;&#123;&#51;&#125;&#92;&#114;&#105;&#103;&#104;&#116;&#41;&#94;&#50;&#32;&#61;&#32;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#50;&#94;&#50;&#125;&#123;&#51;&#94;&#50;&#125;&#32;&#61;&#32;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#52;&#125;&#123;&#57;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"47\" width=\"122\" style=\"vertical-align: -17px;\"\/>. Pour revoir le calcul avec les fractions, consultez le cours sur les <a href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-fractions\/\">op\u00e9rations sur les fractions<\/a>.<\/li>\n<\/ul>\n<p>Les m\u00eames r\u00e8gles s&rsquo;appliquent en calcul litt\u00e9ral : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-051a534264bef4ca1d275a995a587452_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#120;&#94;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#120;&#94;&#51;&#32;&#61;&#32;&#120;&#94;&#53;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"98\" style=\"vertical-align: 0px;\"\/> et <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-7bbd1d0bd30b44ec5d363d742ffc79a5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#50;&#120;&#41;&#94;&#51;&#32;&#61;&#32;&#56;&#120;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"89\" style=\"vertical-align: -5px;\"\/>. Vous pouvez vous entra\u00eener avec nos <a href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-exercices-corriges-algebre\/\">exercices corrig\u00e9s d&rsquo;alg\u00e8bre<\/a>.<\/p>\n<div style=\"background: #FFF8EC; border-left: 6px solid #C77F0C; padding: 15px; margin: 20px 0; color: #0f2742;\"><strong>&#x1f4a1; Astuce :<\/strong> les r\u00e8gles du produit et du quotient ne marchent qu&rsquo;avec <strong>la m\u00eame base<\/strong>. Pour <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-a31f388cb97009187f89704679673386_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#53;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"54\" style=\"vertical-align: 0px;\"\/>, ce sont les exposants qui sont \u00e9gaux : on utilise la r\u00e8gle du produit, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-aa256b88635f3098676f81f50f6e724d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#53;&#94;&#51;&#32;&#61;&#32;&#40;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#53;&#41;&#94;&#51;&#32;&#61;&#32;&#49;&#48;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"188\" style=\"vertical-align: -5px;\"\/>.<\/div>\n<h2>Comment calculer une puissance n\u00e9gative ?<\/h2>\n<p>Pour un nombre a non nul et un entier n positif, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-bd48e7e792150a55cafb44a2f80f8eca_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#123;&#45;&#110;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"28\" style=\"vertical-align: 0px;\"\/> est l&rsquo;inverse de <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-72ccb5bdd2e3f8e22fd9f89374a3a0cb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#110;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"17\" style=\"vertical-align: 0px;\"\/> :<\/p>\n<p class=\"ql-center-displayed-equation\" style=\"line-height: 36px;\"><span class=\"ql-right-eqno\"> &nbsp; <\/span><span class=\"ql-left-eqno\"> &nbsp; <\/span><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-4b56c7f3a3fe48c140fe09baa3204f2a_l3.png\" height=\"36\" width=\"74\" class=\"ql-img-displayed-equation quicklatex-auto-format\" alt=\"&#92;&#091;&#32;&#97;&#94;&#123;&#45;&#110;&#125;&#32;&#61;&#32;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#97;&#94;&#110;&#125;&#32;&#92;&#093;\" title=\"Rendered by QuickLaTeX.com\"\/><\/p>\n<ul>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-5de9bbabfc0c0f06857ebf3b6416b15c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#123;&#45;&#49;&#125;&#32;&#61;&#32;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#50;&#125;&#32;&#61;&#32;&#48;&#123;&#44;&#125;&#53;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"109\" style=\"vertical-align: -12px;\"\/><\/li>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-371d0e6d81b94e4f6e1303018fab909a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#123;&#45;&#51;&#125;&#32;&#61;&#32;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#50;&#94;&#51;&#125;&#32;&#61;&#32;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#56;&#125;&#32;&#61;&#32;&#48;&#123;&#44;&#125;&#49;&#50;&#53;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"171\" style=\"vertical-align: -12px;\"\/><\/li>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-6a3dcbabc71172a4d933010e4c954730_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#52;&#125;&#32;&#61;&#32;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#49;&#48;&#94;&#52;&#125;&#32;&#61;&#32;&#48;&#123;&#44;&#125;&#48;&#48;&#48;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"160\" style=\"vertical-align: -12px;\"\/><\/li>\n<\/ul>\n<p>Un exposant n\u00e9gatif ne rend pas le r\u00e9sultat n\u00e9gatif : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e8a99be91e740899342488f015a2bb6f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#123;&#45;&#51;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"27\" style=\"vertical-align: 0px;\"\/> est un nombre positif, plus petit que 1. Les r\u00e8gles de calcul restent les m\u00eames : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-c2a4c34e4031caea1f8d524689aeb624_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#52;&#125;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#49;&#48;&#94;&#52;&#32;&#61;&#32;&#49;&#48;&#94;&#123;&#45;&#52;&#43;&#52;&#125;&#32;&#61;&#32;&#49;&#48;&#94;&#48;&#32;&#61;&#32;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"240\" style=\"vertical-align: 0px;\"\/>, et <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-67c856b0a2dc2d6a3db8c4b5f5385c57_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#50;&#94;&#51;&#125;&#123;&#50;&#94;&#53;&#125;&#32;&#61;&#32;&#50;&#94;&#123;&#51;&#45;&#53;&#125;&#32;&#61;&#32;&#50;&#94;&#123;&#45;&#50;&#125;&#32;&#61;&#32;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#52;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"162\" style=\"vertical-align: -12px;\"\/>.<\/p>\n<h2>Peut-on additionner des puissances ?<\/h2>\n<p>Non, il n&rsquo;existe pas de formule pour <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-afa1a697bad09392eac39ec07fd396de_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#110;&#32;&#43;&#32;&#97;&#94;&#109;\" title=\"Rendered by QuickLaTeX.com\" height=\"14\" width=\"61\" style=\"vertical-align: -2px;\"\/>. En particulier, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-afa1a697bad09392eac39ec07fd396de_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#110;&#32;&#43;&#32;&#97;&#94;&#109;\" title=\"Rendered by QuickLaTeX.com\" height=\"14\" width=\"61\" style=\"vertical-align: -2px;\"\/> n&rsquo;est pas \u00e9gal \u00e0 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-3181963d5ea4108e3981eaad9826d55c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#123;&#110;&#43;&#109;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"40\" style=\"vertical-align: 0px;\"\/> : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e737c3a681e999960819d27ccc16f44b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#51;&#32;&#43;&#32;&#50;&#94;&#50;&#32;&#61;&#32;&#56;&#32;&#43;&#32;&#52;&#32;&#61;&#32;&#49;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"158\" style=\"vertical-align: -2px;\"\/>, alors que <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-21f1e4d846279bb9462ca68fb75a3991_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#53;&#32;&#61;&#32;&#51;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"57\" style=\"vertical-align: 0px;\"\/>. Pour une somme ou une diff\u00e9rence de puissances, on calcule chaque puissance puis on additionne : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e5c60b5974e8feb5d77d01a1b2417268_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#50;&#32;&#43;&#32;&#49;&#48;&#94;&#51;&#32;&#61;&#32;&#49;&#48;&#48;&#32;&#43;&#32;&#49;&#92;&#44;&#48;&#48;&#48;&#32;&#61;&#32;&#49;&#92;&#44;&#49;&#48;&#48;\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"244\" style=\"vertical-align: -2px;\"\/>.<\/p>\n<p>On peut parfois factoriser quand les puissances sont identiques :<\/p>\n<ul>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-44a1e1c6861081608a08bc68d3acfb38_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#51;&#94;&#123;&#49;&#50;&#125;&#32;&#43;&#32;&#51;&#94;&#123;&#49;&#50;&#125;&#32;&#43;&#32;&#51;&#94;&#123;&#49;&#50;&#125;&#32;&#61;&#32;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#51;&#94;&#123;&#49;&#50;&#125;&#32;&#61;&#32;&#51;&#94;&#123;&#49;&#51;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"238\" style=\"vertical-align: -2px;\"\/> ;<\/li>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-15c6307945901727dc2c2de0f844988d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#123;&#49;&#49;&#125;&#32;&#43;&#32;&#50;&#94;&#123;&#49;&#49;&#125;&#32;&#61;&#32;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#94;&#123;&#49;&#49;&#125;&#32;&#61;&#32;&#50;&#94;&#123;&#49;&#50;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"193\" style=\"vertical-align: -2px;\"\/> ;<\/li>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-9b426dbd835914d138f05f3d6cc190ef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#53;&#94;&#52;&#32;&#43;&#32;&#53;&#94;&#51;&#32;&#61;&#32;&#53;&#94;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#53;&#32;&#43;&#32;&#53;&#94;&#51;&#32;&#61;&#32;&#53;&#94;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#40;&#53;&#32;&#43;&#32;&#49;&#41;&#32;&#61;&#32;&#54;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#53;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"349\" style=\"vertical-align: -5px;\"\/>.<\/li>\n<\/ul>\n<p>Pas de r\u00e8gle non plus pour une puissance d&rsquo;une somme : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-1aa11eb3785b4354bae9e946e5f8ad28_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#97;&#32;&#43;&#32;&#98;&#41;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"59\" style=\"vertical-align: -5px;\"\/> n&rsquo;est pas \u00e9gal \u00e0 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-505549d183a4258a320acd6aae601d9a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#94;&#50;&#32;&#43;&#32;&#98;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"54\" style=\"vertical-align: -2px;\"\/>. Par exemple, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-d7889fb8279ea6291d7c66820788c4ae_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#49;&#32;&#43;&#32;&#50;&#41;&#94;&#50;&#32;&#61;&#32;&#57;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"93\" style=\"vertical-align: -5px;\"\/>, alors que <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-f50ce62a2ea4dcfcbef51efa50072a42_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#94;&#50;&#32;&#43;&#32;&#50;&#94;&#50;&#32;&#61;&#32;&#53;\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"85\" style=\"vertical-align: -2px;\"\/>.<\/p>\n<h2>Comment calculer avec les puissances de 10 ?<\/h2>\n<p>Pour un entier n positif, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-01ad6ad029ae65cad5e944f979bd6e01_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#110;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"25\" style=\"vertical-align: 0px;\"\/> s&rsquo;\u00e9crit avec un 1 suivi de n z\u00e9ros, et <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-2b29715bf1bfa9393f176ed65ba8da8e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#110;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"36\" style=\"vertical-align: -1px;\"\/> s&rsquo;\u00e9crit avec n chiffres apr\u00e8s la virgule, le dernier \u00e9tant 1 : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-43cfa0ac9d79d5803759b889787332af_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#54;&#32;&#61;&#32;&#49;&#92;&#44;&#48;&#48;&#48;&#92;&#44;&#48;&#48;&#48;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"116\" style=\"vertical-align: 0px;\"\/> et <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-60589c4533442e85531ca84c537457fd_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#54;&#125;&#32;&#61;&#32;&#48;&#123;&#44;&#125;&#48;&#48;&#48;&#48;&#48;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"126\" style=\"vertical-align: -4px;\"\/>.<\/p>\n<h3>Le tableau des puissances de 10 et des pr\u00e9fixes<\/h3>\n<table class=\"table\" style=\"width: 100%; border-color: #0F2742; color: #0f2742; background: #ffffff;\">\n<tbody>\n<tr>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>Puissance de 10<\/strong><\/td>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>\u00c9criture d\u00e9cimale<\/strong><\/td>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>Pr\u00e9fixe<\/strong><\/td>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>Exemple<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e0f2aff09926ce94c14ef96b9f0be5ef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#57;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\">1 000 000 000 (un milliard)<\/td>\n<td style=\"border: 1px solid #0F2742;\">giga (G)<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 Go = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e0f2aff09926ce94c14ef96b9f0be5ef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#57;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> octets<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-65d542c036ab6b8fcb26d4ec305d59c6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#54;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\">1 000 000 (un million)<\/td>\n<td style=\"border: 1px solid #0F2742;\">m\u00e9ga (M)<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 MW = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-65d542c036ab6b8fcb26d4ec305d59c6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#54;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> W<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-fbfc70f36baf000e935a21b446c5b5ce_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\">1 000<\/td>\n<td style=\"border: 1px solid #0F2742;\">kilo (k)<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 km = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-fbfc70f36baf000e935a21b446c5b5ce_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> m<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-2032143fb3d1998265ecd3409986d103_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\">100<\/td>\n<td style=\"border: 1px solid #0F2742;\">hecto (h)<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 hL = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-2032143fb3d1998265ecd3409986d103_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> L<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-8cfe2b8314b1615a425ed09558086d71_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"23\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\">10<\/td>\n<td style=\"border: 1px solid #0F2742;\">d\u00e9ca (da)<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 dam = 10 m<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-6aeef1c441fc48089b8d94fcc45c5cda_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#48;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\">1<\/td>\n<td style=\"border: 1px solid #0F2742;\">aucun<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 m<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-c1a495598ce696e573a12d71e4b5e022_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#49;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"34\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\">0,1<\/td>\n<td style=\"border: 1px solid #0F2742;\">d\u00e9ci (d)<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 dm = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-c1a495598ce696e573a12d71e4b5e022_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#49;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"34\" style=\"vertical-align: 0px;\"\/> m<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-7ac8fbc5a11b4501639c79bc8340f103_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#50;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"35\" style=\"vertical-align: -1px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\">0,01<\/td>\n<td style=\"border: 1px solid #0F2742;\">centi (c)<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 cm = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-7ac8fbc5a11b4501639c79bc8340f103_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#50;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"35\" style=\"vertical-align: -1px;\"\/> m<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-f44250941371f09bb8dc7aa7702aaddb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#51;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"35\" style=\"vertical-align: -1px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\">0,001<\/td>\n<td style=\"border: 1px solid #0F2742;\">milli (m)<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 mg = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-f44250941371f09bb8dc7aa7702aaddb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#51;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"35\" style=\"vertical-align: -1px;\"\/> g<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-50b4cee806559c7ebd2a58d0a09cc57d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#54;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"35\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\">0,000001<\/td>\n<td style=\"border: 1px solid #0F2742;\">micro (\u00b5)<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 \u00b5m = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-50b4cee806559c7ebd2a58d0a09cc57d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#54;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"35\" style=\"vertical-align: 0px;\"\/> m<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-a7c85389480de485e5488090c6bb930e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#57;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"35\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\">0,000000001<\/td>\n<td style=\"border: 1px solid #0F2742;\">nano (n)<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 nm = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-a7c85389480de485e5488090c6bb930e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#57;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"35\" style=\"vertical-align: 0px;\"\/> m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Les r\u00e8gles de calcul avec les puissances de 10<\/h3>\n<p>Ce sont les r\u00e8gles g\u00e9n\u00e9rales, appliqu\u00e9es \u00e0 la base 10 :<\/p>\n<ul>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-5a104db829b7fef29dc56beb0367525b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#53;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#49;&#48;&#94;&#123;&#45;&#50;&#125;&#32;&#61;&#32;&#49;&#48;&#94;&#123;&#53;&#43;&#40;&#45;&#50;&#41;&#125;&#32;&#61;&#32;&#49;&#48;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"219\" style=\"vertical-align: 0px;\"\/> ;<\/li>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-2a02e29d44979b485d584ccce29aab75_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#49;&#48;&#94;&#50;&#125;&#123;&#49;&#48;&#94;&#123;&#45;&#51;&#125;&#125;&#32;&#61;&#32;&#49;&#48;&#94;&#123;&#50;&#45;&#40;&#45;&#51;&#41;&#125;&#32;&#61;&#32;&#49;&#48;&#94;&#53;\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"175\" style=\"vertical-align: -12px;\"\/> ;<\/li>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-227fa9eb4912aed7060c77dbb8fb80f0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#49;&#48;&#94;&#123;&#45;&#50;&#125;&#41;&#94;&#51;&#32;&#61;&#32;&#49;&#48;&#94;&#123;&#45;&#54;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"116\" style=\"vertical-align: -5px;\"\/>.<\/li>\n<\/ul>\n<p>Multiplier un nombre par <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-01ad6ad029ae65cad5e944f979bd6e01_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#110;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"25\" style=\"vertical-align: 0px;\"\/> d\u00e9cale la virgule de n rangs vers la droite, et le multiplier par <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-2b29715bf1bfa9393f176ed65ba8da8e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#110;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"36\" style=\"vertical-align: -1px;\"\/> la d\u00e9cale de n rangs vers la gauche : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-f672ec45d7dd321d18d2b84fa8f482fe_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#51;&#123;&#44;&#125;&#55;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#49;&#48;&#94;&#51;&#32;&#61;&#32;&#51;&#92;&#44;&#55;&#48;&#48;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"132\" style=\"vertical-align: -4px;\"\/> et <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-74bc68f2c0d292797f593f5e87c9eb10_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#51;&#123;&#44;&#125;&#55;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#49;&#48;&#94;&#123;&#45;&#51;&#125;&#32;&#61;&#32;&#48;&#123;&#44;&#125;&#48;&#48;&#51;&#55;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"154\" style=\"vertical-align: -4px;\"\/>.<\/p>\n<h3>Convertir des unit\u00e9s avec les puissances de 10<\/h3>\n<table class=\"table\" style=\"width: 100%; border-color: #0F2742; color: #0f2742; background: #ffffff;\">\n<tbody>\n<tr>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>Grandeur<\/strong><\/td>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>Conversions<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">Longueurs<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 km = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-fbfc70f36baf000e935a21b446c5b5ce_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> m ; 1 m = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-fbfc70f36baf000e935a21b446c5b5ce_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> mm<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">Aires<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 km\u00b2 = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-65d542c036ab6b8fcb26d4ec305d59c6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#54;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> m\u00b2 ; 1 m\u00b2 = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-65d542c036ab6b8fcb26d4ec305d59c6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#54;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> mm\u00b2 ; 1 ha = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-217fd26ba0f5f3269c503bc4d5958992_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#52;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> m\u00b2 ; 1 km\u00b2 = 100 ha<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">Volumes<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 km\u00b3 = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e0f2aff09926ce94c14ef96b9f0be5ef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#57;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> m\u00b3 ; 1 m\u00b3 = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e0f2aff09926ce94c14ef96b9f0be5ef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#57;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> mm\u00b3 ; 1 L = 1 dm\u00b3<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">Masses<\/td>\n<td style=\"border: 1px solid #0F2742;\">1 t = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-fbfc70f36baf000e935a21b446c5b5ce_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> kg = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-65d542c036ab6b8fcb26d4ec305d59c6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#54;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> g ; 1 kg = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-fbfc70f36baf000e935a21b446c5b5ce_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> g ; 1 g = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-fbfc70f36baf000e935a21b446c5b5ce_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> mg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Pour les aires, l&rsquo;exposant est doubl\u00e9, et tripl\u00e9 pour les volumes : comme 1 m = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-fbfc70f36baf000e935a21b446c5b5ce_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> mm, on a 1 m\u00b2 = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-ee8902dd8f7a5fc24b61daffda2be5ce_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#49;&#48;&#94;&#51;&#41;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"45\" style=\"vertical-align: -5px;\"\/> mm\u00b2 = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-65d542c036ab6b8fcb26d4ec305d59c6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#54;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> mm\u00b2, et 1 m\u00b3 = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e4c253cd9e417d9afe20f7d7cdd99c58_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#49;&#48;&#94;&#51;&#41;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"45\" style=\"vertical-align: -5px;\"\/> mm\u00b3 = <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e0f2aff09926ce94c14ef96b9f0be5ef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#57;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"24\" style=\"vertical-align: 0px;\"\/> mm\u00b3. Les formules d&rsquo;aire et de volume sont rappel\u00e9es dans le cours sur les <a href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-figures-geometriques\/\">figures g\u00e9om\u00e9triques<\/a>.<\/p>\n<h2>Qu&rsquo;est-ce que l&rsquo;\u00e9criture scientifique d&rsquo;un nombre ?<\/h2>\n<p>Un nombre positif est \u00e9crit en notation scientifique lorsqu&rsquo;il a la forme <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-fce9c54b5c854c30bee88c744acb4a49_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#49;&#48;&#94;&#110;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"57\" style=\"vertical-align: 0px;\"\/>, avec a compris entre 1 (inclus) et 10 (exclu), et n un entier relatif. Le nombre a a un seul chiffre non nul avant la virgule.<\/p>\n<table class=\"table\" style=\"width: 100%; border-color: #0F2742; color: #0f2742; background: #ffffff;\">\n<tbody>\n<tr>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>Nombre<\/strong><\/td>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>\u00c9criture scientifique<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">150 000 000<\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-2af79570b279c91cd8de572355c95b5b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#123;&#44;&#125;&#53;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#49;&#48;&#94;&#56;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"68\" style=\"vertical-align: -4px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">4 720<\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e9774df9135a9047e02065964d82bbe8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#52;&#123;&#44;&#125;&#55;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#49;&#48;&#94;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"78\" style=\"vertical-align: -4px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">0,00032<\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-bfda24502bc779c39459e5c48f163d8f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#51;&#123;&#44;&#125;&#50;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#49;&#48;&#94;&#123;&#45;&#52;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"80\" style=\"vertical-align: -4px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">0,0001<\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-45aea90f541190bacaace6fd27cef6fc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#49;&#48;&#94;&#123;&#45;&#52;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"66\" style=\"vertical-align: 0px;\"\/>, soit <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-389a09efb7d1153bf16cd429b124bf64_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#52;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"35\" style=\"vertical-align: -1px;\"\/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Pour passer \u00e0 l&rsquo;\u00e9criture scientifique, on place la virgule apr\u00e8s le premier chiffre non nul, puis on compte de combien de rangs elle s&rsquo;est d\u00e9plac\u00e9e. Le nombre <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-8aac5ee20f0e82ad8aaa32e25cec2bc8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#48;&#123;&#44;&#125;&#48;&#48;&#48;&#51;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"58\" style=\"vertical-align: -4px;\"\/> devient 3,2 apr\u00e8s un d\u00e9placement de 4 rangs vers la droite : on compense avec <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-389a09efb7d1153bf16cd429b124bf64_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#45;&#52;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"35\" style=\"vertical-align: -1px;\"\/>.<\/p>\n<p>L&rsquo;\u00e9criture scientifique donne aussi l&rsquo;ordre de grandeur d&rsquo;un r\u00e9sultat. \u00c0 la calculatrice, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e85ef88887355affc3c00bd5cf9c3a9b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#53;&#57;&#92;&#44;&#51;&#50;&#53;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#49;&#53;&#57;&#92;&#44;&#52;&#56;&#53;&#32;&#61;&#32;&#52;&#49;&#92;&#44;&#51;&#53;&#56;&#92;&#44;&#52;&#52;&#55;&#92;&#44;&#54;&#50;&#53;\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"263\" style=\"vertical-align: 0px;\"\/>, soit environ <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-923d35735ae877ce78543b9805fc94aa_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#52;&#123;&#44;&#125;&#49;&#52;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#49;&#48;&#94;&#123;&#49;&#48;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"85\" style=\"vertical-align: -4px;\"\/>. Ce produit est donc compris entre <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-7b7e96e70b8b8a40c7bcc71ae40c1101_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#49;&#48;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"31\" style=\"vertical-align: -1px;\"\/> et <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-5cd0202abf98fe2f389793c023f674e3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#48;&#94;&#123;&#49;&#49;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"30\" style=\"vertical-align: -1px;\"\/>.<\/p>\n<h2>Quelles erreurs \u00e9viter avec les puissances ?<\/h2>\n<table class=\"table\" style=\"width: 100%; border-color: #0F2742; color: #0f2742; background: #ffffff;\">\n<tbody>\n<tr>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>Erreur fr\u00e9quente<\/strong><\/td>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>Calcul correct<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-0c7cfd5ea2769fd7da039a91e8703356_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#51;&#94;&#52;&#32;&#61;&#32;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#52;&#32;&#61;&#32;&#49;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"120\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-c25e75d62216325d2c911411942f14a2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#51;&#94;&#52;&#32;&#61;&#32;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#51;&#32;&#61;&#32;&#56;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"181\" style=\"vertical-align: 0px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-13b65452b64eb9b7a87b4bff107dd994_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#51;&#32;&#43;&#32;&#50;&#94;&#50;&#32;&#61;&#32;&#50;&#94;&#53;\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"94\" style=\"vertical-align: -2px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e737c3a681e999960819d27ccc16f44b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#51;&#32;&#43;&#32;&#50;&#94;&#50;&#32;&#61;&#32;&#56;&#32;&#43;&#32;&#52;&#32;&#61;&#32;&#49;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"158\" style=\"vertical-align: -2px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-5b672e57c011e35b9ea4601c5d207b18_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#94;&#52;&#32;&#61;&#32;&#50;&#94;&#123;&#49;&#50;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"101\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\">On additionne les exposants : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-8a90bdbedea77816b26ff9dc73ea0d51_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#55;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"16\" style=\"vertical-align: 0px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-8bca39030a4bee84f10d346467ea5a15_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#51;&#32;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#50;&#94;&#52;&#32;&#61;&#32;&#52;&#94;&#55;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"94\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\">On garde la base : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-8a90bdbedea77816b26ff9dc73ea0d51_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#55;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"16\" style=\"vertical-align: 0px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-664ed4a7a754f24f3aa24164e8f0b419_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#51;&#94;&#50;&#41;&#94;&#52;&#32;&#61;&#32;&#51;&#94;&#54;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"77\" style=\"vertical-align: -5px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\">On multiplie les exposants : <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-30ac0dc6d3ac66e0907cff7318a0e7a3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#51;&#94;&#56;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"16\" style=\"vertical-align: 0px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-ca7e64792dd773c77fe6a6ca6af7b124_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#45;&#50;&#94;&#52;&#32;&#61;&#32;&#49;&#54;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"71\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-7496f1f8d228f2171051225d5dce28b9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#45;&#50;&#94;&#52;&#32;&#61;&#32;&#45;&#49;&#54;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"85\" style=\"vertical-align: 0px;\"\/>, mais <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-f168cdfc19c02f76b9ea3d0ff2adb295_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#45;&#50;&#41;&#94;&#52;&#32;&#61;&#32;&#49;&#54;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"85\" style=\"vertical-align: -5px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-43e298e88c4a874e313264920f7ad4fa_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#123;&#45;&#51;&#125;&#32;&#61;&#32;&#45;&#56;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"74\" style=\"vertical-align: 0px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-e5fe347d43fdfcd825b4e33ac751f6b3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#94;&#123;&#45;&#51;&#125;&#32;&#61;&#32;&#92;&#100;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#56;&#125;&#32;&#61;&#32;&#48;&#123;&#44;&#125;&#49;&#50;&#53;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"127\" style=\"vertical-align: -12px;\"\/><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-51a5f09583b27c24368a9fdf0cbf8477_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#97;&#32;&#43;&#32;&#98;&#41;&#94;&#50;&#32;&#61;&#32;&#97;&#94;&#50;&#32;&#43;&#32;&#98;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"136\" style=\"vertical-align: -5px;\"\/><\/td>\n<td style=\"border: 1px solid #0F2742;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-d7889fb8279ea6291d7c66820788c4ae_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#40;&#49;&#32;&#43;&#32;&#50;&#41;&#94;&#50;&#32;&#61;&#32;&#57;\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"93\" style=\"vertical-align: -5px;\"\/>, alors que <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-f50ce62a2ea4dcfcbef51efa50072a42_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#94;&#50;&#32;&#43;&#32;&#50;&#94;&#50;&#32;&#61;&#32;&#53;\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"85\" style=\"vertical-align: -2px;\"\/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Les puissances servent aussi dans les calculs d&rsquo;\u00e9volution : deux hausses successives de 10 % multiplient un prix par <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/groupe-reussite.fr\/ressources\/wp-content\/ql-cache\/quicklatex.com-69192f25a4a6a46b365d5e09bdbbefd8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#49;&#123;&#44;&#125;&#49;&#94;&#50;&#32;&#61;&#32;&#49;&#123;&#44;&#125;&#50;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"84\" style=\"vertical-align: -4px;\"\/>, soit une hausse de 21 %. Cette m\u00e9thode est d\u00e9taill\u00e9e dans le cours sur les <a href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-pourcentages\/\">pourcentages<\/a>. Pour vous entra\u00eener sur toutes ces r\u00e8gles, faites nos <a href=\"https:\/\/groupe-reussite.fr\/ressources\/cours-en-ligne-exercices-corriges-puissances\/\">exercices corrig\u00e9s sur les puissances<\/a>.<\/p>\n<h2>En quelle classe apprend-on les puissances ?<\/h2>\n<table class=\"table\" style=\"width: 100%; border-color: #0F2742; color: #0f2742; background: #ffffff;\">\n<tbody>\n<tr>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>Classe<\/strong><\/td>\n<td style=\"background: #0F2742; color: #ffffff; border: 1px solid #0F2742; text-align: left;\"><strong>Ce que l&rsquo;\u00e9l\u00e8ve apprend<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">5<sup>e<\/sup><\/td>\n<td style=\"border: 1px solid #0F2742;\">Notion de puissance avec le carr\u00e9 et le cube, carr\u00e9s des entiers de 0 \u00e0 12, cube de 10, calculs avec des puissances simples<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">4<sup>e<\/sup><\/td>\n<td style=\"border: 1px solid #0F2742;\">Puissances d&rsquo;exposant positif, produit de puissances d&rsquo;un m\u00eame nombre et de puissances de m\u00eame exposant, probl\u00e8mes<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">3<sup>e<\/sup><\/td>\n<td style=\"border: 1px solid #0F2742;\">Puissances d&rsquo;exposant n\u00e9gatif, produits et quotients de puissances, notation scientifique<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0F2742;\">Lyc\u00e9e<\/td>\n<td style=\"border: 1px solid #0F2742;\">Puissances d&rsquo;exposant entier relatif dans tous les calculs, puis fonctions exponentielles et suites g\u00e9om\u00e9triques<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Cette r\u00e9partition suit le programme de math\u00e9matiques du cycle 4 publi\u00e9 au Bulletin officiel du 5 mars 2026. Il s&rsquo;applique en 5<sup>e<\/sup> depuis la rentr\u00e9e 2026, en 4<sup>e<\/sup> \u00e0 la rentr\u00e9e 2027 et en 3<sup>e<\/sup> \u00e0 la rentr\u00e9e 2028. Les pr\u00e9fixes des puissances de 10, de nano \u00e0 giga, sont introduits au fil du cycle, selon les besoins.<\/p>\n<p>&nbsp;<\/p>\n\t\t<div data-elementor-type=\"section\" data-elementor-id=\"205992\" class=\"elementor elementor-205992\">\n\t\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t\t<section class=\"has_ae_slider elementor-section elementor-inner-section elementor-element elementor-element-df11d1e elementor-section-content-bottom full_width elementor-section-full_width elementor-section-height-min-height elementor-section-height-default ae-bg-gallery-type-default\" data-id=\"df11d1e\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;gradient&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-narrow\">\n\t\t\t\t\t<div class=\"has_ae_slider elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-54ab74af ae-bg-gallery-type-default\" data-id=\"54ab74af\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2c1ca7d elementor-widget elementor-widget-heading\" data-id=\"2c1ca7d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">STAGE DE MATHS PENDANT LES VACANCES<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e600302 elementor-widget elementor-widget-heading\" data-id=\"3e600302\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Gagner en s\u00e9r\u00e9nit\u00e9 et progresser en confiance<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-598c6a68 elementor-align-left elementor-mobile-align-center elementor-widget elementor-widget-button\" data-id=\"598c6a68\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/groupe-reussite.fr\/stages\/maths\/tous-niveaux\/france\/toutes-periodes\/\" target=\"_blank\" id=\"CTA_PRD_STAGE\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Stage maths vacances<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"has_ae_slider elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-14415dfd ae-bg-gallery-type-default\" data-id=\"14415dfd\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\n<p>&nbsp;<\/p>\n<h2>FAQ : questions fr\u00e9quentes sur les puissances<\/h2>\n        <section class=\"sc_fs_faq sc_card \">\n            <div>\n\t\t\t\t<h3>Quelle est la formule d&#039;une puissance ?<\/h3>                <div>\n\t\t\t\t\t                    <p>\n\t\t\t\t\t\tPour un nombre a et un entier n sup\u00e9rieur ou \u00e9gal \u00e0 2, a\u207f = a \u00d7 a \u00d7 \u2026 \u00d7 a, avec n facteurs \u00e9gaux \u00e0 a. Par exemple, 2\u2075 = 2 \u00d7 2 \u00d7 2 \u00d7 2 \u00d7 2 = 32. Par convention, a\u00b9 = a et a\u2070 = 1.                    <\/p>\n                <\/div>\n            <\/div>\n        <\/section>\n\t\t        <section class=\"sc_fs_faq sc_card \">\n            <div>\n\t\t\t\t<h3>Comment multiplier des puissances ?<\/h3>                <div>\n\t\t\t\t\t                    <p>\n\t\t\t\t\t\tSi les puissances ont la m\u00eame base, on garde la base et on additionne les exposants : 2\u00b3 \u00d7 2\u2074 = 2\u2077. Si elles ont le m\u00eame exposant, on multiplie les bases : 2\u00b3 \u00d7 5\u00b3 = 10\u00b3. Sinon, on calcule chaque puissance avant de multiplier.                    <\/p>\n                <\/div>\n            <\/div>\n        <\/section>\n\t\t        <section class=\"sc_fs_faq sc_card \">\n            <div>\n\t\t\t\t<h3>Comment additionner des puissances ?<\/h3>                <div>\n\t\t\t\t\t                    <p>\n\t\t\t\t\t\tIl n'existe pas de r\u00e8gle pour additionner des puissances : on calcule chaque puissance, puis on fait la somme. Par exemple, 2\u00b3 + 2\u00b2 = 8 + 4 = 12. Quand les puissances sont identiques, on peut factoriser : 3\u00b9\u00b2 + 3\u00b9\u00b2 + 3\u00b9\u00b2 = 3 \u00d7 3\u00b9\u00b2 = 3\u00b9\u00b3.                    <\/p>\n                <\/div>\n            <\/div>\n        <\/section>\n\t\t        <section class=\"sc_fs_faq sc_card \">\n            <div>\n\t\t\t\t<h3>Que vaut 10 puissance -4 ?<\/h3>                <div>\n\t\t\t\t\t                    <p>\n\t\t\t\t\t\t10\u207b\u2074 = 1 \/ 10\u2074 = 0,0001. Un exposant n\u00e9gatif donne l'inverse de la puissance positive : le nombre obtenu est positif et plus petit que 1.                    <\/p>\n                <\/div>\n            <\/div>\n        <\/section>\n\t\t        <section class=\"sc_fs_faq sc_card \">\n            <div>\n\t\t\t\t<h3>Pourquoi un nombre exposant 0 est-il \u00e9gal \u00e0 1 ?<\/h3>                <div>\n\t\t\t\t\t                    <p>\n\t\t\t\t\t\tEn divisant une puissance par elle-m\u00eame, on obtient 1 d'un c\u00f4t\u00e9 et a\u2070 de l'autre, car a\u207f \/ a\u207f = a\u207f\u207b\u207f = a\u2070. Par exemple, 2\u00b3 \/ 2\u00b3 = 8 \/ 8 = 1. Cette r\u00e8gle vaut pour tout nombre a non nul : 10\u2070 = 1 et 7\u2070 = 1.                    <\/p>\n                <\/div>\n            <\/div>\n        <\/section>\n\t\t        <section class=\"sc_fs_faq sc_card \">\n            <div>\n\t\t\t\t<h3>Que signifie une puissance 1\/2 ?<\/h3>                <div>\n\t\t\t\t\t                    <p>\n\t\t\t\t\t\tAu lyc\u00e9e, on rencontre parfois des exposants fractionnaires. Pour un nombre a positif, a puissance 1\/2 est la racine carr\u00e9e de a : 25 puissance 1\/2 = \u221a25 = 5.                    <\/p>\n                <\/div>\n            <\/div>\n        <\/section>\n\t\t\n<script type=\"application\/ld+json\">\n    {\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Quelle est la formule d'une puissance ?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"Pour un nombre a et un entier n sup\u00e9rieur ou \u00e9gal \u00e0 2, a\u207f = a \u00d7 a \u00d7 \u2026 \u00d7 a, avec n facteurs \u00e9gaux \u00e0 a. Par exemple, 2\u2075 = 2 \u00d7 2 \u00d7 2 \u00d7 2 \u00d7 2 = 32. Par convention, a\u00b9 = a et a\u2070 = 1.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Comment multiplier des puissances ?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"Si les puissances ont la m\u00eame base, on garde la base et on additionne les exposants : 2\u00b3 \u00d7 2\u2074 = 2\u2077. Si elles ont le m\u00eame exposant, on multiplie les bases : 2\u00b3 \u00d7 5\u00b3 = 10\u00b3. Sinon, on calcule chaque puissance avant de multiplier.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Comment additionner des puissances ?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"Il n'existe pas de r\u00e8gle pour additionner des puissances : on calcule chaque puissance, puis on fait la somme. Par exemple, 2\u00b3 + 2\u00b2 = 8 + 4 = 12. Quand les puissances sont identiques, on peut factoriser : 3\u00b9\u00b2 + 3\u00b9\u00b2 + 3\u00b9\u00b2 = 3 \u00d7 3\u00b9\u00b2 = 3\u00b9\u00b3.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Que vaut 10 puissance -4 ?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"10\u207b\u2074 = 1 \/ 10\u2074 = 0,0001. Un exposant n\u00e9gatif donne l'inverse de la puissance positive : le nombre obtenu est positif et plus petit que 1.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Pourquoi un nombre exposant 0 est-il \u00e9gal \u00e0 1 ?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"En divisant une puissance par elle-m\u00eame, on obtient 1 d'un c\u00f4t\u00e9 et a\u2070 de l'autre, car a\u207f \/ a\u207f = a\u207f\u207b\u207f = a\u2070. Par exemple, 2\u00b3 \/ 2\u00b3 = 8 \/ 8 = 1. Cette r\u00e8gle vaut pour tout nombre a non nul : 10\u2070 = 1 et 7\u2070 = 1.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Que signifie une puissance 1\/2 ?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"Au lyc\u00e9e, on rencontre parfois des exposants fractionnaires. Pour un nombre a positif, a puissance 1\/2 est la racine carr\u00e9e de a : 25 puissance 1\/2 = \u221a25 = 5.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t\t    ]\n}\n<\/script>\n\n<h2>Sources<\/h2>\n<ul>\n<li>Minist\u00e8re de l&rsquo;\u00c9ducation nationale, <a href=\"https:\/\/www.education.gouv.fr\/sites\/default\/files\/document\/Annexe%202%20%E2%80%93%20Programme%20de%20math%C3%A9matiques%20pour%20le%20cycle%204-480716.pdf\" target=\"_blank\" rel=\"noopener\">Programme de math\u00e9matiques du cycle 4<\/a>, annexe 2 de l&rsquo;<a href=\"https:\/\/www.education.gouv.fr\/bo\/2026\/Hebdo10\/MENE2602912A\" target=\"_blank\" rel=\"noopener\">arr\u00eat\u00e9 du 18 f\u00e9vrier 2026<\/a>, BO n\u00b0 10 du 5 mars 2026<\/li>\n<li>Acad\u00e9mie de Bordeaux, <a href=\"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/wp-content\/uploads\/sites\/3\/2026\/07\/Le-programme-de-5e.pdf\" target=\"_blank\" rel=\"noopener\">Le programme de 5e<\/a>, juillet 2026<\/li>\n<li>Bureau international des poids et mesures (BIPM), <a href=\"https:\/\/www.bipm.org\/fr\/si-brochure-9\" target=\"_blank\" rel=\"noopener\">Le Syst\u00e8me international d&rsquo;unit\u00e9s (SI)<\/a>, 9e \u00e9dition, 2019<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Cours sur les puissances : r\u00e8gles de calcul, formules et puissances de 10 Par Seda Biber, mis \u00e0 jour le 20\/10\/2026 R\u00e9sum\u00e9 de cours Exercices et corrig\u00e9s Cours en ligne du Tage Mage Une puissance est un produit de facteurs tous \u00e9gaux : , avec n facteurs. Pour calculer avec des puissances d&rsquo;un m\u00eame nombre, [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ocean_post_layout":"full-screen","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"ressource","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"on","ocean_disable_heading":"on","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"on","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","footnotes":""},"class_list":["post-52746","page","type-page","status-publish","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - 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