CHRONO

27 s.

Additions et soustractions à trous.

CHRONO

0 s.
71 - = 65
36 - = 34
32 - = 26
76 + = 76
79 - = 73
23 + = 27
51 - = 50
45 - = 45
28 + = 33
52 - = 49
58 + = 62
51 + = 55
19 + = 22
94 - = 88
28 + = 31
14 - = 8
88 - = 86
74 - = 68
80 + = 84
32 + = 34