Réponses :
A = 7
B = 8
C = 6
D = -3
E = 7
F = 1
G = -9
H = -9
I = -4
J = 0
Explications étape par étape:
A = -1-(2×-4) = -1-(-8) = 7
B = (-2-14)÷(5-7) = (-16)÷(-2) = 16÷2 = 8
C = (-2)×(-3)×(-1) = (-6)×(-1) = 6
D = (-12)÷(1-(-3)) = (-12)÷(1+3) = -12÷4 = -3
E = (-4×7)+(5×7) = -28 + 35 = 7
F = -2-((-18)÷(-3))+9 = -2-6+9 = 1
G = (-2-2,5)×2 = (-4,5)×2 = -9
H = (1-(-2))×(-3) = (1+2)×(-3) = 3×(-3) = -9
I = -2+6-7-(-1) = -2+6-7+1 = -4
J = (-4)×(-3-(-3)) = (-4)×(-3+3) = (-4)×0 = 0
Voilà, j'espère que les explications seront assez claires, bon travail :)
