CHRONO

10 s.

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

CHRONO

0 s.
12 x 40 =
15 x 20 =
400 x 3 =
11 x 2 =
200 x 9 =
4 x 5 =
3 x 200 =
1 x 400 =
7 x 400 =
15 x 2 =
8 x 2 =
20 x 11 =
5 x 20 =
400 x 1 =
7 x 20 =
400 x 12 =
6 x 20 =
4 x 12 =
6 x 200 =
12 x 200 =