CHRONO

53 s.

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

CHRONO

0 s.
300 x 9 =
4 x 50 =
8 x 60 =
20 x 5 =
7 x 40 =
7 x 900 =
10 x 7 =
1 x 50 =
5 x 300 =
1 x 800 =
1 x 600 =
800 x 6 =
600 x 6 =
2 x 100 =
80 x 6 =
700 x 9 =
5 x 500 =
3 x 800 =
70 x 9 =
900 x 5 =