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Sagot :

MITCHALEXANDRINE2314

A)9-4+(6-11)-(-8+3-2)

=9-4+6-11+8-3+2

=5-5+5+2

=0+7

=7

B)-16-(7-15+4)-(-5+12)

=-16-7+15-4+5-12

=-23+11-7

=-30+11

=-19

C)7-5+(2-3)-(-7+5-3

=7-5+2-3+7-5+3

=2-1+2+3

=1+5

=6

D)-10-(5-3+2)-(-13+12)

=-10-5+3-2+13-12

=-15+1+1

=-14+1

=-13

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