CHRONO

10 s.

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

CHRONO

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