CHRONO

10 s.

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

CHRONO

0 s.
7 x 60 =
8 x 900 =
5 x 40 =
6 x 400 =
8 x 60 =
8 x 100 =
100 x 4 =
900 x 2 =
600 x 1 =
8 x 200 =
2 x 700 =
80 x 1 =
3 x 300 =
50 x 1 =
6 x 10 =
6 x 30 =
9 x 50 =
50 x 3 =
8 x 80 =
900 x 5 =