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Manon605
@Manon605
May 2019
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Bonjour, pouvez-vous m'aider ? Merci d'avance
Calcule astucieusement les expressions suivantes :
A) (+14)+(-45)+(-14)+(+15)
B)(-1,4)+(-1,2)+(+1,6)-(+1,6)
C)(+1,35)+(-2,7)-(-0,65)+(-1,3)
D)(-5,7)-(-0,7)+(+1,3)-(-1)-(+1,3)
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emeline59273
Verified answer
A: -30
B: 0
C: 1,35-4,65= -3,30
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winner123
Bonjour
a ) - 45 + 15 = - 30 ( +14 et - 14 s'éliminent)
b ) - 1.4 - 1.2 = - 2.6
c) 1.35 - 2.7 + 0.65 - 1.3 = 2 - 4 = - 2
d) - 5.7 + 0.7 + 1 = - 4
0 votes
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Verified answer
A: -30B: 0
C: 1,35-4,65= -3,30
a ) - 45 + 15 = - 30 ( +14 et - 14 s'éliminent)
b ) - 1.4 - 1.2 = - 2.6
c) 1.35 - 2.7 + 0.65 - 1.3 = 2 - 4 = - 2
d) - 5.7 + 0.7 + 1 = - 4