CHRONO

24 s.

Additions et soustractions à trous.

CHRONO

0 s.
86 - = 80
31 + = 33
31 - = 26
80 + = 81
90 + = 93
25 - = 23
69 - = 63
19 - = 13
45 - = 45
3 - = 2
7 + = 10
92 - = 92
22 + = 25
91 - = 89
32 + = 34
29 - = 28
81 - = 80
14 + = 19
98 + = 98
60 + = 66