CHRONO

10 s.

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

CHRONO

0 s.
700 x 3 =
4 x 600 =
3 x 900 =
90 x 8 =
3 x 100 =
3 x 600 =
30 x 3 =
10 x 7 =
3 x 50 =
3 x 10 =
70 x 1 =
900 x 6 =
600 x 5 =
40 x 3 =
600 x 2 =
6 x 50 =
70 x 6 =
90 x 6 =
1 x 90 =
40 x 9 =