3-cm20 2013-2014
TRANSCRIPT
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Calcul mental
Les racines carrés, des
nombres série n°5 noté
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Diapositive 1Diapositive 1
Trouver le nombre Trouver le nombre manquant :manquant :
2? 5−
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Diapositive 2Diapositive 2
Calculer et écrire le résultat sous Calculer et écrire le résultat sous la forme d’un la forme d’un nombre entiernombre entier..
2 26 8
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Diapositive 3Diapositive 3
Calculer :Calculer : 36
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Diapositive 4Diapositive 4
Calculer :Calculer : 2( 11)
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Diapositive 5Diapositive 5
Calculer et écrire le résultat sous Calculer et écrire le résultat sous la forme d’un la forme d’un nombre entiernombre entier..
4 25
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Diapositive 6Diapositive 6
Calculer et écrire le résultat sous Calculer et écrire le résultat sous la forme d’un la forme d’un nombre entiernombre entier..
64 49
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Diapositive 7Diapositive 7
Calculer :Calculer : 49
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Diapositive 8Diapositive 8
Calculer et écrire le résultat sous Calculer et écrire le résultat sous la forme d’un la forme d’un nombre entiernombre entier..
3 3
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Diapositive 9Diapositive 9Calculer et écrire le résultat sous Calculer et écrire le résultat sous la forme d’un la forme d’un nombre entiernombre entier..
20
5
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Diapositive 10Diapositive 10
18
Ecrire sous la forme Ecrire sous la forme a b
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FIN
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CORRECTION
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Diapositive 1Diapositive 1
Donc
2? 5
? 5
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Diapositive 2Diapositive 2
275 5 55
2 26 8 36 64 100 10
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Diapositive 3Diapositive 3
323 3 107 2
36 6
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Diapositive 4Diapositive 4
2( 11) 11
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Diapositive 5Diapositive 5
4 25
2 5 10
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Diapositive 6Diapositive 6
64 49
8 7 1
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Diapositive 7Diapositive 7
49
23
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Diapositive 8Diapositive 8
3 3 3
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Diapositive 9Diapositive 9
20 20
455
2
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Diapositive 10Diapositive 10
8 91 2 3 2