Réponses

2013-11-05T18:54:09+01:00
Meilleure réponse !
2013-11-05T18:55:00+01:00
A = 3x7=21
B = +11-(+17)=11-17=-6
C = -2-(-9)=-2+9=7
D = -19 : (-2)=9,5
E = -16-2=-18
F = -7+3=-4
G = -6+7=1
H = -8x(-7)=56
i = +4-(-4)=4+4=8