CHRONO

10 s.

Calculer des produits par 2, 20, 200, 4, 40, 400.

CHRONO

0 s.
13 x 40 =
2 x 20 =
15 x 2 =
2 x 8 =
12 x 4 =
20 x 7 =
14 x 2 =
5 x 4 =
400 x 14 =
20 x 11 =
8 x 20 =
2 x 11 =
2 x 4 =
2 x 12 =
14 x 200 =
2 x 5 =
200 x 5 =
200 x 7 =
12 x 40 =
200 x 12 =