CHRONO

10 s.

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

CHRONO

0 s.
300 x 5 =
9 x 70 =
4 x 70 =
3 x 70 =
90 x 5 =
4 x 90 =
7 x 900 =
4 x 400 =
4 x 60 =
3 x 500 =
900 x 5 =
5 x 100 =
5 x 20 =
7 x 700 =
9 x 600 =
400 x 5 =
30 x 6 =
1 x 200 =
8 x 900 =
2 x 100 =