CHRONO

10 s.

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

CHRONO

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