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Calcule les sommes suivantes:

A=(-25)+(56)-(-50)+(12) B=(-33)-(-42) + (42) - (-10)
D=-14+56-23 + 10-18 + 16
25+26 +1
G=(-15) + 16-(-30) - 10
to
E = -80+ 45-12+10 -2 -10
H=-50+ 16+ (-30) - 15
C=(25)-(50)+(20)-(-15)
F=-135-14 9-14 13-5
I=-255+ (300) - (+60) - 25

Sagot :

LIXI42

A = 93

B = 61

C =  10

D = 438

E = -49

F = -448

G = 21

H = -79

I = -40