CHRONO

10 s.

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

CHRONO

0 s.
500 x 9 =
90 x 8 =
2 x 500 =
10 x 2 =
70 x 8 =
100 x 6 =
800 x 5 =
5 x 800 =
30 x 1 =
900 x 9 =
6 x 90 =
30 x 5 =
300 x 3 =
800 x 8 =
200 x 3 =
7 x 900 =
30 x 9 =
100 x 9 =
600 x 6 =
60 x 7 =