CHRONO

10 s.

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

CHRONO

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