Réponse :
Bonjour
Explications étape par étape
A = 15 - 24 + 11 - 9 +2
A = 15 +11 +2 -24 -9
A = +28 - 33
A = -5
B = -16 +14 - 13 +18
B = 14 +18 -16 -13
B = +32 -29
B = +3
C = -7 +13 - 12 + 5
C = -7 -12 +13 +5
C = -19 +18
C = -1
Écrire sans parenthèses les calculs suivants, puis les effectuer.
A = (-6) - (+6) + (-5)
A = -6 -6 -5 = -17
B = (+8) + (+7) - (-3)
B = +8 +7 +3
B = 18
C = (-5)-(-4) - (+9)
C = -5 +4 +9
C = +8
D = (+4) + (-6)-(-2)
D = +4 -6 +2
D = 0
E = (-8) + (+4) - (-13)
E = -8 +4 +13
E = -8 +17
E = +9
F = (-9) - (-3) - (+14)
F = -9 +3 -14
F = -23 +3
F = -20