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Pouvez vous m’aider avant jeudi svp Exercice 1:
Effectue les opérations suivantes en détaillant toutes les étapes :
A = (-3) × (-9-(-5))
B = 11- (+3) × (-8)
C = 5-(25-5x6)
D = (-2-5) × (+4) - 9
E = 5 × (-4) + (-2) × (-7)
F=3-(7-(-1) × (4-9))

Sagot :

Réponse :

bonjour

Explications étape par étape :

A = (-3) × (-9-(-5))

=27 +5

=32

B = 11- (+3) × (-8)

=11-(-24)

=11+24

=35

C = 5-(25-5x6)

=5-(25-30)

=5-(-5)

=5+5

=10

D = (-2-5) × (+4) - 9

=-7x4 -9

=-28-9

=-37

E = 5 × (-4) + (-2) × (-7)

=-20 +14

=-6

F=3-(7-(-1) × (4-9))

=3 -(7+1x-5)

=3- (7-5)

=3-2

=1

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