CHRONO

10 s.

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

CHRONO

0 s.
200 x 14 =
20 x 14 =
2 x 14 =
4 x 20 =
5 x 4 =
20 x 9 =
14 x 200 =
4 x 9 =
7 x 400 =
4 x 15 =
200 x 12 =
2 x 15 =
1 x 2 =
3 x 4 =
200 x 10 =
400 x 9 =
4 x 2 =
20 x 3 =
8 x 2 =
15 x 40 =