CHRONO

15 s.

Additions du type 30 + 40, 20 + 50.

CHRONO

0 s.
70 + 20 =
10 + 20 =
40 + 10 =
10 + 10 =
30 + 50 =
20 + 20 =
50 + 10 =
10 + 30 =
30 + 30 =
60 + 10 =
10 + 40 =
30 + 20 =
40 + 50 =
40 + 20 =
20 + 60 =
20 + 10 =
50 + 10 =
60 + 10 =
10 + 80 =
30 + 50 =