CHRONO

30 s.

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

CHRONO

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