CHRONO

10 s.

Additions et soustractions à trous.

CHRONO

0 s.
96 - = 92
53 + = 53
8 + = 12
32 - = 27
32 + = 38
78 - = 74
50 + = 56
97 - = 96
21 + = 25
32 - = 28
42 - = 41
70 - = 68
51 + = 53
65 + = 71
64 + = 67
57 - = 54
42 - = 39
57 - = 52
7 - = 2
76 + = 82