CHRONO

27 s.

Additions et soustractions à trous.

CHRONO

0 s.
2 + = 6
73 - = 67
76 + = 79
11 + = 12
70 - = 64
5 + = 6
5 + = 8
4 + = 5
75 - = 72
83 - = 83
45 + = 51
62 + = 67
86 - = 81
84 - = 81
50 - = 45
96 + = 98
86 - = 82
9 - = 9
45 - = 43
26 + = 31