CHRONO

3 s.

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

CHRONO

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