CHRONO

-INF s.

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

CHRONO

0 s.
400 x 7 =
12 x 200 =
20 x 2 =
2 x 13 =
400 x 13 =
14 x 40 =
40 x 5 =
4 x 20 =
2 x 12 =
2 x 14 =
20 x 12 =
40 x 1 =
2 x 3 =
40 x 3 =
10 x 400 =
4 x 2 =
200 x 9 =
2 x 400 =
9 x 400 =
2 x 20 =