CHRONO

38 s.

Additions et soustractions à trous.

CHRONO

0 s.
93 - = 89
62 + = 67
38 - = 35
38 + = 41
59 + = 62
59 - = 58
72 + = 78
19 + = 25
45 + = 51
17 - = 17
96 + = 96
67 + = 72
64 + = 68
36 + = 37
96 - = 96
22 - = 18
59 + = 65
94 + = 97
43 + = 44
8 + = 14