CHRONO

24 s.

Additions et soustractions à trous.

CHRONO

0 s.
5 + = 9
61 + = 65
71 - = 69
98 - = 94
48 + = 48
75 + = 81
38 + = 39
73 + = 79
60 - = 56
77 - = 74
87 - = 86
56 + = 61
80 + = 80
70 + = 70
71 + = 71
76 + = 80
81 - = 75
25 - = 25
79 - = 75
21 + = 24