&lt;h3&gt;&lt;span style=&quot;font-family: &amp;quot;Times New Roman&amp;quot;;&quot;&gt;&lt;span style=&quot;font-weight: bolder;&quot;&gt;Chapitre I&lt;br&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: &amp;quot;Times New Roman&amp;quot;;&quot;&gt;&lt;span style=&quot;font-weight: bolder;&quot;&gt;Op&eacute;rations sur les nombres entiers et d&eacute;cimaux positifs&lt;br&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: &amp;quot;Times New Roman&amp;quot;;&quot;&gt;&lt;span style=&quot;font-weight: bolder;&quot;&gt;Activit&eacute; 1 :&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;br&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: &amp;quot;Times New Roman&amp;quot;;&quot;&gt;&lt;span style=&quot;font-weight: bolder;&quot;&gt;I. Priorit&eacute;s de calculs&lt;br&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: &amp;quot;Times New Roman&amp;quot;;&quot;&gt;&lt;span style=&quot;font-weight: bolder;&quot;&gt;1. Calcul sans parenth&egrave;ses :&lt;br&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: &amp;quot;Times New Roman&amp;quot;;&quot;&gt;&lt;span style=&quot;font-weight: bolder;&quot;&gt;R&egrave;gle 1 :Exemples :&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;br&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: &amp;quot;Times New Roman&amp;quot;;&quot;&gt;&lt;span style=&quot;font-weight: bolder;&quot;&gt;R&egrave;gle 2 :Exemples :&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;br&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: &amp;quot;Times New Roman&amp;quot;;&quot;&gt;&lt;span style=&quot;font-weight: bolder;&quot;&gt;2. Calculs avec parenth&egrave;ses :&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;br&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: &amp;quot;Times New Roman&amp;quot;;&quot;&gt;&lt;span style=&quot;font-weight: bolder;&quot;&gt;R&egrave;gle 3 :Exemples :&lt;/span&gt;&lt;/span&gt;&lt;/h3&gt;