CHRONO

10 s.

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

CHRONO

0 s.
8 x 50 =
9 x 40 =
1 x 100 =
9 x 800 =
1 x 30 =
70 x 8 =
8 x 900 =
3 x 600 =
100 x 1 =
40 x 3 =
6 x 50 =
3 x 500 =
100 x 3 =
400 x 3 =
10 x 4 =
600 x 6 =
200 x 5 =
6 x 700 =
8 x 10 =
3 x 300 =