CHRONO

aucun

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

CHRONO

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