CHRONO

10 s.

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

CHRONO

0 s.
200 x 1 =
4 x 40 =
15 x 4 =
200 x 9 =
14 x 400 =
200 x 15 =
200 x 8 =
2 x 200 =
9 x 2 =
200 x 10 =
20 x 6 =
4 x 14 =
5 x 4 =
7 x 40 =
400 x 13 =
1 x 40 =
2 x 40 =
6 x 4 =
11 x 200 =
7 x 2 =