CHRONO

-INF s.

Multiplier un nombre simple par 20 ou 50.

CHRONO

0 s.
7 x 20 =
450 = 50 x
1 x 20 =
80 = 20 x
350 = 50 x
20 = 1 x
450 = 9 x
100 = 20 x
50 = 50 x
140 = 20 x
150 = 3 x
50 x 6 =
5 x 20 =
150 = 50 x
120 = 6 x
50 x 5 =
50 x 4 =
200 = 50 x
100 = 50 x
100 = 5 x