February 2021 0 83 Report
Calculer:(Détailler les étapes) : A=15-8+10-11-4,5+3,7+8
B= -12-(-4)+7-(12-3)
C=3-6-(-4+5)+(-19+4)

On donne : a=-10 b=3,5 c= -4

Calculer:
D= -a-b+2-(c-7)+(-1-a)
E=10+a-[a-(b-c+1)]
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