CHRONO

10 s.

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

CHRONO

0 s.
400 x 10 =
11 x 20 =
3 x 400 =
40 x 6 =
20 x 13 =
400 x 7 =
2 x 5 =
4 x 1 =
20 x 6 =
3 x 40 =
6 x 200 =
2 x 400 =
6 x 2 =
12 x 40 =
20 x 8 =
20 x 3 =
14 x 200 =
9 x 20 =
200 x 1 =
13 x 4 =