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Sagot :

MILA72

Réponse :

Explications étape par étape

a. ( +9) - ( +7 )

9 -7 = 2

b. ( +8 ) - ( -13 )

8+13 = 21

c. ( -15 ) - ( -6 )

-15+6 = -9

d. (+12 ) - (-12)

12+12 = 24

e. ( +15 ) - ( -12)

15+12 = 27

f. (-4) - (+11)

-4 -11 = -15

g. (-8) - ( +5)

-8 -5 = -13

h. (-9) - (-9)

-9 +9 = 0

i. (-8) - (-13)

-8 +13 = 5

j. (+5) - (+9)

5 -9 = -4

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