CHRONO

27 s.

Additions et soustractions à trous.

CHRONO

0 s.
52 - = 49
50 + = 53
76 - = 71
8 - = 2
26 + = 32
90 + = 96
8 + = 9
47 - = 46
8 + = 13
21 + = 24
79 + = 80
76 + = 76
95 - = 91
56 - = 54
67 + = 68
58 + = 61
15 + = 17
97 - = 94
32 - = 30
76 + = 79