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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