1 Complète les opérations à trou suivantes.
4 x ........ = 8
... X 21 = 0
1.5 x ...... = 22
6 x ...... = 54
10 x .... = 10
1.4X ......= 3
.... x 25 = 50
4 x .....
........ = 2
8 x…. = 2
8 x ........ = 5
1 x ...... = 89
......... X 4 =
61.3 x ........ = 7


Sagot :

Explications étape par étape:

4 x 2 = 8

0 X 21 = 0

1.5 x 14.66 = 22

6 x 9= 54

10 x 1 = 10

1.4X 2. 14 = 3

2 x 25 = 50

4 × 2/4 = 2

8 × 2/8 = 2

8 x 5/8 = 5

1 x 89 = 89

61.3 × 7/61.3 = 7