Compléter A=15-7×(-9) B=-65-3×4+17 C=4-3×8-7×(-2) D=-4+2×10-10×7
Mathématiques
mr9
Question
Compléter
A=15-7×(-9)
B=-65-3×4+17
C=4-3×8-7×(-2)
D=-4+2×10-10×7
A=15-7×(-9)
B=-65-3×4+17
C=4-3×8-7×(-2)
D=-4+2×10-10×7
1 Réponse
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1. Réponse maudmarine
A=15-7×(-9)
A = 15 + 63
A = 78
B=-65-3×4+17
B = - 65 - 12 + 17
B = - 77 + 17
B = - 60
C=4-3×8-7×(-2)
C = 4 - 24 + 14
C = 4 + 14 - 24
C = 18 - 24
C = - 6
D=-4+2×10-10×7
D = - 4 + 20 - 70
D = - 4 - 70 + 20
D = - 74 + 20
D = - 54