Merci de votre aide pour calculer ses expressions A= -5+(-3) B= 8+(-10) C=-4-1 D=2-7-(-4)+1 E=6+(1-3)-(5+2-9)

A= -5+(-3)  = -5 - 3 = -8

B= 8+(-10)  = 8 - 10 = -2

C=-4-1  = -5

D=2-7-(-4)+1 = 2 - 7 + 4 + 1 = 2 + 4 + 1 - 7 = 0

E=6+(1-3)-(5+2-9) = 6 + 1 - 3 - 5 - 2 + 9 = 6 + 1 + 9 - 3 - 5 - 2 =16 - 10 = 6