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
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