3-Cm16 2013-2014
17
Calcul mental Les racines carrés, des nombres Série n° 1
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Transcript of 3-Cm16 2013-2014
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Calcul mental Les racines carrés, des nombres
Série n° 1
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Diapositive 1Diapositive 1
Trouver le nombre Trouver le nombre manquant :manquant :
2? 3−
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Diapositive 2Diapositive 2
Trouver le nombre Trouver le nombre manquant :manquant :
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Diapositive 3Diapositive 3
Calculer :Calculer : 81
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Diapositive 4Diapositive 4
Calculer :Calculer : 259
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Diapositive 5Diapositive 5
Calculer :Calculer : 2( 7)
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FIN
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CORRECTION
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Diapositive 1Diapositive 1
−Donc
2? 3
? 3
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Diapositive 2Diapositive 2
Donc
2² 5² 4 25 2
?
9
29
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Diapositive 3Diapositive 3
81 9
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Diapositive 4Diapositive 4
259
53
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Diapositive 5Diapositive 5
2( 7) 7