CHRONO

10 s.

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

CHRONO

0 s.
13 x 2 =
14 x 2 =
4 x 4 =
200 x 13 =
400 x 5 =
20 x 1 =
4 x 7 =
400 x 8 =
400 x 6 =
7 x 200 =
9 x 20 =
6 x 200 =
3 x 20 =
40 x 11 =
20 x 14 =
3 x 2 =
2 x 4 =
400 x 3 =
200 x 14 =
4 x 4 =