CHRONO

10 s.

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

CHRONO

0 s.
7 x 90 =
7 x 20 =
800 x 2 =
1 x 200 =
80 x 2 =
10 x 6 =
5 x 900 =
4 x 90 =
70 x 1 =
10 x 9 =
500 x 5 =
9 x 80 =
300 x 5 =
600 x 3 =
6 x 300 =
300 x 8 =
10 x 8 =
9 x 700 =
3 x 10 =
8 x 90 =