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rojinbyh67

Réponse:

A = 4 + (-5) = -1

B = 12 + 7 = 19

C = -8 + (-5) = -13

D = -4 + 4 = 0

E = 21 + (-31) = -10

F = -5 + 8 = 3

hirondelle52

Bonsoir;

A=4+(-5)

=4-5

= -1

B= 12+7

=19

C= -8+(-5)

= -8-5

= -13

D= -4+4

=0

E= 21+(-31)

= 21-31

= -10

F= -5+8

= +3

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