CHRONO

57 s.

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

CHRONO

0 s.
500 x 9 =
2 x 600 =
60 x 4 =
100 x 1 =
2 x 400 =
4 x 40 =
1 x 30 =
7 x 80 =
5 x 30 =
4 x 300 =
3 x 50 =
40 x 2 =
5 x 400 =
700 x 3 =
1 x 70 =
400 x 2 =
20 x 3 =
3 x 500 =
600 x 8 =
90 x 1 =