Réponse:
a. A= -5-6+13
A = -11+13
A = 2
b. B= -2+12-14
= -16+12
= -4
c. C= 27-13-15
= 27-28
= -1
d. D= 18-7+9-18-9+3
= -7+3
e. E= 7,8-8,9-2,3
= 7,8-11,2
= -3,4
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Réponse:
a. A= -5-6+13
A = -11+13
A = 2
b. B= -2+12-14
= -16+12
= -4
c. C= 27-13-15
= 27-28
= -1
d. D= 18-7+9-18-9+3
= -7+3
= -4
e. E= 7,8-8,9-2,3
= 7,8-11,2
= -3,4