CHRONO

268 s.

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

CHRONO

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