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Sagot :

Bonjour

A = -2 - (-5 + 3) + 7

A = -2 - (-2) + 7

A = -2 + 2 + 7

A = 7

B = -9 x 2 + 5 x (-6) - 3

B = -18 - 30 - 3

B = -48 - 3

B = -51

C = -6 + 7 x (-3) - 6 x (-1)

C = -6 - 21 + 6

C = -21

Vrai

D = -6 : 2 + 1

D = -3 + 1 (fausse a cette ligne)

D = -2

E = 12 + (7 - 9) + (-10 + 9)

E = 12 - 2 - 1

E = 12 - 3

E = 9

F = -4 - 8 - (3 - 11) + 2

F = -12 - (-8) + 2

F = -12 + 8 + 2

F = -12 + 10

F = (-2)

G = -8 : 2 x 2

G = -4 x 2

G = -8

H = -8 + (-4 + 5 - 7) - (-2 + 9)

H = -8 + (-11 + 5) - 7

H = -8 - 6 - 7

H = -21

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