CHRONO

65 s.

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

CHRONO

0 s.
700 x 9 =
6 x 10 =
1 x 800 =
2 x 900 =
600 x 8 =
8 x 100 =
1 x 300 =
40 x 5 =
200 x 7 =
7 x 100 =
30 x 7 =
700 x 5 =
4 x 600 =
1 x 40 =
500 x 4 =
8 x 50 =
5 x 20 =
1 x 100 =
1 x 10 =
700 x 2 =