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Exercice 1:
Effectue les calculs suivants en détaillant toutes les étapes.
A = 7 + (-6) X (-6)
B = 13 – (+3) X (-4) - 8
C = - 3 - 9 X (-3)
D = - 3 X 6 X (-2+ 8)
E = – 22 + (13 – 5) X (-5)
F = – 28 + (5 – 2) × (-4)
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Sagot :

MARGARIDALEITE20063

Réponse:

A=7+(−6)×(−6)

=7+36(Multiplier -6−6 et pour obtenir 36)

=43

B=13 – (+3) X (-4) - 8

=13−(−12)−8

=13+12−8

=25−8

=17

C=- 3 - 9 X (-3)

=−3−(−27)

= - 3+27

=27

D=- 3 X 6 X (-2+ 8)

=18X(-2+8)

=18X6

=108

E=– 22 + (13 – 5) X (-5)

=−22+8X(−5)

=-22-40

= - 62

F=– 28 + (5 – 2) × (-4)

=−28+3×(−4)

=-28-12

=-40

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