CHRONO

10 s.

Calculer des produits du type 80 x 4 ou 800 x 4.

CHRONO

0 s.
200 x 9 =
5 x 600 =
2 x 200 =
700 x 1 =
40 x 2 =
500 x 5 =
20 x 9 =
30 x 8 =
300 x 2 =
7 x 20 =
40 x 5 =
4 x 600 =
400 x 8 =
90 x 1 =
600 x 5 =
10 x 5 =
1 x 400 =
800 x 6 =
8 x 100 =
40 x 6 =