CHRONO

10 s.

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

CHRONO

0 s.
4 x 11 =
10 x 20 =
200 x 2 =
15 x 4 =
200 x 11 =
2 x 2 =
400 x 7 =
2 x 20 =
13 x 20 =
4 x 2 =
7 x 20 =
20 x 12 =
20 x 14 =
40 x 15 =
12 x 400 =
3 x 400 =
4 x 2 =
6 x 2 =
3 x 200 =
2 x 4 =