Bonjour,
Calculer:
A = -3+(-7) - (-3) + 8 -5 + 10= -3-7+3+8-5+10
= -10+10+11-5= 0+11-5= 6
B = 135 + (-154) - (-65) - 46
= 135-154+65-46
= -19+19
= 0
C = 1,98 + (-5,2)-(-3,4) + 0,02 – 4,5
= 1.98-5.2+3.4+0.02-4.5
= .. calcule
D= 21 – (-5 + 3) + (4-8) - 21
= 21-(-2)-4-21
D= 21-21-4+2
D= ... calcule
