Calcul Mental
03/04/2025
MiCetF
Contact
10 s.
Multiplier un nombre simple par 20 ou 50.
0 s.
20 = 1 x
180 = 20 x
140 = 7 x
250 = 50 x
400 = 50 x
160 = 8 x
50 x 9 =
7 x 50 =
450 = 50 x
3 x 50 =
60 = 3 x
200 = 50 x
20 x 5 =
80 = 20 x
2 x 50 =
20 x 6 =
9 x 20 =
100 = 5 x
50 x 3 =
150 = 3 x
CORRIGER
ABANDONNER