CHRONO

10 s.

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

CHRONO

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