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Exercice 5: Calculer en respectant les priorités opératoires.
A=(-6 + 9) * ( 5 - 12)
B = 6 *[3* (-8)]
C = -4*-(-2)*(-8)
D = -7 * 5-3 * 11
E = -5* (7 - 13+2)

Sagot :

A=(-6 + 9) * ( 5 - 12)

A=-6x5-6x(-12)+9x5+9x(-12)

A=-30+72+45-108

A=-21

B = 6 *[3* (-8)]

B = 6x(-24)

B = -144

C = -4x-(-2)*(-8)

C = -4x-(16)

C = -4x-16

D = -7 * 5-3 * 11

D = -7x5 - 3x11

D = -35-33

D = -68

E = -5* (7 - 13+2)

E = -5x(-4)

E = 20