CHRONO

2 s.

Additions à trous (a + b + ? = s <= 20).

CHRONO

0 s.
7 + 4 + = 14
6 + 4 + = 12
7 + 2 + = 12
5 + 6 + = 18
2 + 1 + = 9
6 + 3 + = 13
4 + 7 + = 14
5 + 5 + = 15
6 + 2 + = 12
8 + 4 + = 20
8 + 1 + = 14
6 + 7 + = 16
3 + 3 + = 10
7 + 3 + = 16
8 + 1 + = 16
2 + 7 + = 18
8 + 6 + = 16
1 + 2 + = 6
6 + 9 + = 18
8 + 2 + = 11