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Sagot :

Réponse:

1) a) (3×+1)×3

b)4×

2)a) (3×+1)×3=4×

b) (3×2)+3=9

4×2=8

(6,5+1)+3=22.5

4×6.5=26

3)a)(A1+1)×3

(A2+1)×3

b)×=3

c)3×3)+3=12

4×3= 12

voilà bon courage

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