CHRONO

10 s.

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

CHRONO

0 s.
500 x 4 =
600 x 2 =
7 x 40 =
600 x 6 =
900 x 3 =
800 x 1 =
8 x 80 =
20 x 1 =
1 x 900 =
3 x 400 =
300 x 5 =
4 x 10 =
20 x 9 =
7 x 100 =
8 x 50 =
700 x 7 =
50 x 1 =
8 x 100 =
800 x 9 =
100 x 3 =