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Sagot :

Bonsoir,

Ex. 12 :

a) 6 × 15/6 = 15

b) 5 × 4/5 = 4

c) 3 × 10/3 = 10

Ex. 3 :

3 × 1,2 = 3,6

4 × 1,2 = 4,8

7,2 ÷ 1,2 = 6

10,8 ÷ 1,2 = 9

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