Bonjour, svp aider moi sur cet exercice : A.(+12)+(-5)-(+8)+(-12). B.(+4)-(+9)+(-10)-(-16). C.(-5)+(+13)-(-5)+(-4). D.(+7)-(-3)+(-7)-(+5)

Sagot :

A = 12-5-8-12 = -13
B = 4-9-10+16 = 1
C = -5+13+5-4 = 9
D = 7+3-7-5 = -2

Bonjour,

Calculer:

A.(+12)+(-5)-(+8)+(-12)= 12-5-8-12= 12-12-5-8= -5-8= -13

B.(+4)-(+9)+(-10)-(-16)= 4-9-10+16= 16-10+4-9= 6-5= 1

C.(-5)+(+13)-(-5)+(-4)= -5+13+5-4= -5+5+13-4= 0+9= 9

D.(+7)-(-3)+(-7)-(+5)= 7+3-7-5= 7-7+3-5= 0+3-5= -2