Pouvez vous m’aidez svp

Réponse :
A = 4 + (2 + 6) = 4+ 2 +6 = 10+2 =12
B = -4 + (-2+6) = -4 -2 +6 = -6 +6 = 0
C = -(4-2)+6 = -4+2+6 = 8-4 =4
D = (-4) - (2-6) = -4 -2 +6 =-6 +6 = 0