CHRONO

10 s.

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

CHRONO

0 s.
2 x 200 =
200 x 10 =
7 x 200 =
2 x 11 =
40 x 10 =
200 x 12 =
12 x 400 =
5 x 400 =
40 x 12 =
2 x 9 =
15 x 200 =
40 x 6 =
400 x 10 =
2 x 3 =
12 x 40 =
4 x 5 =
200 x 11 =
4 x 7 =
10 x 4 =
12 x 20 =