CHRONO

10 s.

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

CHRONO

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