CHRONO

10 s.

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

CHRONO

0 s.
400 x 8 =
1 x 600 =
1 x 300 =
20 x 9 =
5 x 30 =
2 x 400 =
7 x 50 =
50 x 5 =
4 x 30 =
10 x 3 =
900 x 1 =
4 x 90 =
9 x 40 =
60 x 4 =
2 x 30 =
200 x 4 =
40 x 3 =
80 x 6 =
900 x 7 =
300 x 9 =