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Sagot :

NATSUKI04
Regle des signe : ++ = +
- - = +
+ - = -
- + = -

Donc A = -2
B = -7 + 8 + 8 - 11 = -2
C = 12 - 10 - 4 + 2 + 3 = 3
D = -14 - 11 +4 + 8 + 14 = 1

Voila j espere que j ai pu d aider ^^ n hesite pasba reverifier mes calculs

Bonne fin de journee :)
MAUDMARINE

Bonjour,

A = - 5 + 7 - 8 + 4

A = - 5 - 8 + 7 + 4

A = - 13 + 11

A = - 2

B = (- 7) + (+ 8) - (- 8) - (+ 11)

B = - 7 + 8 + 8 - 11

B = - 7 - 11 + 8 + 8

B = - 18 + 16

B = - 2

C = - (- 12) - (+ 10) + (- 4) + (+ 2) - (- 3)

C = 12 - 10 - 4 + 2 + 3

C = 12 + 2 + 3 - 10 - 4

C = 17 - 14

C = 3

D = - 14 + (- 11) - (- 4) - 8 - (- 14)

D = - 14 - 11 + 4 - 8 + 14

D = - 14 + 14 - 11 - 8 + 4

D = - 19 + 4

D = - 15.

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