CHRONO

10 s.

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

CHRONO

0 s.
3 x 200 =
40 x 4 =
14 x 400 =
200 x 2 =
400 x 3 =
12 x 2 =
200 x 6 =
2 x 14 =
1 x 2 =
20 x 13 =
14 x 20 =
40 x 12 =
12 x 200 =
4 x 20 =
2 x 20 =
8 x 200 =
2 x 6 =
4 x 12 =
2 x 2 =
2 x 7 =