Réponse :
Bonjour
Explications étape par étape
Exercice 3
a) +19 -8 = 11
b) -13 +5 = -8
c) -14 -9 = -23
d) +4 +11 = 15
Exercice 4
A = -7 +12 -4 +9 -7
A = -18 +21
A = 3
B = -15 -8 +9 +13 -11
B = -34 +22
B = -12
C = -12 +3 -9 -8 +4
C = -29 +7
C = -22
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Réponse :
Bonjour
Explications étape par étape
Exercice 3
a) +19 -8 = 11
b) -13 +5 = -8
c) -14 -9 = -23
d) +4 +11 = 15
Exercice 4
A = -7 +12 -4 +9 -7
A = -18 +21
A = 3
B = -15 -8 +9 +13 -11
B = -34 +22
B = -12
C = -12 +3 -9 -8 +4
C = -29 +7
C = -22