CHRONO

10 s.

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

CHRONO

0 s.
5 x 40 =
2 x 10 =
40 x 8 =
14 x 400 =
4 x 400 =
4 x 8 =
20 x 1 =
2 x 200 =
20 x 13 =
2 x 8 =
8 x 40 =
20 x 2 =
10 x 40 =
6 x 40 =
2 x 1 =
4 x 12 =
200 x 5 =
10 x 400 =
11 x 200 =
20 x 3 =