CHRONO

10 s.

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

CHRONO

0 s.
200 x 14 =
8 x 20 =
9 x 4 =
3 x 200 =
15 x 20 =
20 x 13 =
1 x 2 =
20 x 10 =
15 x 200 =
10 x 20 =
8 x 2 =
8 x 400 =
400 x 13 =
11 x 200 =
20 x 15 =
2 x 5 =
1 x 40 =
2 x 8 =
4 x 1 =
12 x 20 =