CHRONO

10 s.

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

CHRONO

0 s.
60 x 5 =
5 x 40 =
600 x 9 =
70 x 7 =
400 x 6 =
1 x 80 =
1 x 700 =
1 x 90 =
9 x 80 =
20 x 9 =
100 x 3 =
700 x 3 =
80 x 1 =
1 x 800 =
500 x 8 =
2 x 300 =
5 x 80 =
400 x 1 =
2 x 900 =
3 x 20 =