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bonjour pourriez-vous m’aider svp? Exercice 10
Calcule, sans calculatrice, les expressions
suivantes.
A= 6 + 112 x 3
B=3(-2)3 + 16
C = 10 + 52 X (-3)3
D= (-2)6 - 7(-1)10 + 15

Sagot :

A = 6 + (100×3) + (10×3) + (2×3)

= 6 + 300 + 30 + 6 = 330 + 12 = 342

B = -6×3 + 16 = -18 + 16 = -2

C= 10 + 52 × (-9)

= 10 + [52×(-10) - 1×52]

= 10 +(-520-52)

= 10 + (-468) = -458

D = -12 + 7×10 + 15

= - 12 + 70 + 15

= 58 + 15 = 73