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Enjoyers
@Enjoyers
April 2019
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Bonjour aidez moi svp.
1. Observer les nombres suivants et dire lesquels sont égaux:
A= 3 x9-5
B=3 x(9-5)
C=7(2-0,5)
D=7 x2-0,5
E= 7 x2-7 x0,5
F= 3x9-3 x5
Comment peut-on l'expliquer?
2. Calculer les nombres A à F.
Merci d'avance.
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grr12
Les nombres B et F et C et E sont égaux car ce sont les mêmes expressions développées donc cela respecte les priorités (multiplication prioritaire sur l'addition)
A : 27-5= 22
F : 27 - 15 = 12
1 votes
Thanks 1
Enjoyers
Merci beaucoup pour votre aide.
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A : 27-5= 22
F : 27 - 15 = 12