A= 4+5×(-3) B=(3-5-11)×4 C= -8-7×(-4) D= -9+(-15):(-3)+7
Mathématiques
lila407
Question
A= 4+5×(-3) B=(3-5-11)×4 C= -8-7×(-4) D= -9+(-15):(-3)+7
1 Réponse
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1. Réponse maudmarine
Bonjour,
A = 4 + 5 x (- 3)
A = 4 - 15
A = - 11
B = (3 - 5 - 11) x 4
B = (3 - 16) x 4
B = - 13 x 4
B = - 52
C = - 8 - 7 x (- 4)
C = - 8 + 28
C = 20
D = - 9 + (- 15) : (- 3) + 7
D = - 9 + 5 + 7
D = - 9 + 12
D = 3