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Sagot :

LOULAKAR

Réponse :

Explications étape par étape

Bonsoir

A = 9 + 7 - 2 + 1,5

A = 17,5 - 2

A = 15,5

B = -11 + 7 x 2 + 7 + 8 - 1

B = -11 + 14 + 15 - 1

B = -12 + 29

B = 17

C = -2 - 7 - (7 - 8 : (-1))

C = -9 - (7 + 8)

C = -9 - 15

C = (-24)

D = 5 x 2 - 10 : 10 x 7 + 2

D = 10 - 1 x 7 + 2

D = 12 - 7

D = 5

E = 5 x 2 - 10 : 10 x (7 + 2)

E = 10 - 1 x 9

E = 10 - 9

E = 1

F = (8 - 2) x 2 + 7 x 2

F = 6 x 2 + 14

F = 12 + 14

F = 26

YEAHMAIKO

A = (+9)-(-7)+(-2)-(-1,5)

= 9+7-2+1,5

= 15,5

B = (-11)+(-7)×(-2)-(-7)+(+8)+(-1)

= -11-7×-2+7+8-1

= 17

C = (-2)+(-7)-[(+7)-(+8)÷(-1)]

= -2-7-[7-8÷-1]

= -2-7-7+8÷1

= -8

D = 5×2-10÷10×7+2

= 5

E = 5×2-10÷10×(7+2)

= 1

F = [(+8)-(+2)]×2-(-7)×2

= [8-2]×2+7×2

= 26

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