CHRONO

10 s.

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

CHRONO

0 s.
1 x 40 =
800 x 3 =
70 x 8 =
8 x 500 =
400 x 4 =
3 x 900 =
6 x 900 =
20 x 2 =
8 x 200 =
700 x 1 =
90 x 5 =
900 x 1 =
600 x 4 =
40 x 7 =
3 x 300 =
1 x 60 =
200 x 4 =
80 x 3 =
200 x 9 =
900 x 3 =