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Sagot :

Réponse:

a= 13

b= 1

c= -15

d= -6

E= 0

F= 72

Réponse:

Bonjour,

a) (+4)+(+9)

= 4+9

= 13

b) (-2)+(+3)

= -2+3

= 1

c) (-4)+(-11)

=-4-11

=-15

d) (+1)+(-7)

= 1-7

= -6

e) (-10)+(+10)

=-10+10

=0

f) 0 - (-72)

=0+72

=72

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