CHRONO

10 s.

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

CHRONO

0 s.
2 x 8 =
2 x 6 =
2 x 13 =
7 x 20 =
2 x 10 =
200 x 1 =
15 x 4 =
20 x 15 =
1 x 4 =
20 x 14 =
400 x 13 =
2 x 12 =
2 x 9 =
11 x 2 =
4 x 13 =
200 x 6 =
4 x 20 =
9 x 2 =
40 x 2 =
10 x 40 =