CHRONO

55 s.

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

CHRONO

0 s.
5 + 5 + = 17
2 + 8 + = 19
3 + 4 + = 10
7 + 2 + = 12
3 + 9 + = 13
1 + 8 + = 17
4 + 8 + = 15
3 + 3 + = 9
4 + 4 + = 9
1 + 1 + = 8
6 + 8 + = 17
5 + 6 + = 14
5 + 5 + = 18
4 + 5 + = 11
6 + 6 + = 18
1 + 9 + = 15
2 + 7 + = 16
8 + 6 + = 19
8 + 4 + = 18
3 + 7 + = 15