CHRONO

10 s.

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

CHRONO

0 s.
400 x 12 =
5 x 40 =
11 x 4 =
20 x 9 =
2 x 13 =
20 x 4 =
40 x 3 =
5 x 2 =
10 x 2 =
200 x 11 =
20 x 15 =
11 x 400 =
3 x 40 =
4 x 6 =
200 x 6 =
10 x 200 =
3 x 4 =
400 x 6 =
2 x 6 =
40 x 9 =