CHRONO

10 s.

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

CHRONO

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