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35 Calculer les expressions suivantes sans utiliser
la calculatrice.
a. A = (+3) + (+8) + (-5)
b. B=(+9) + (+6) + (+7) + (-13)
c. C = (+6) + (-9) + (+4) + (-11)
d. D= (+12) + (-4) + (+9) + (+7) + (+10)
e. E=(-12) + (+8) + (-5) + (+14) + (-13)​

Sagot :

Réponse:

A= 11-5=6

B= 22-13=9

C= 10-20 = -10

D= 48 -4 = 44

E= 22 -30 = -10

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