CHRONO

10 s.

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

CHRONO

0 s.
8 x 800 =
600 x 9 =
7 x 10 =
700 x 2 =
6 x 300 =
500 x 7 =
4 x 500 =
6 x 20 =
8 x 40 =
2 x 300 =
2 x 20 =
20 x 6 =
30 x 2 =
7 x 700 =
200 x 9 =
6 x 400 =
5 x 100 =
4 x 60 =
4 x 900 =
90 x 8 =