CHRONO

10 s.

Additions et soustractions à trous.

CHRONO

0 s.
64 + = 67
55 + = 58
66 + = 72
64 - = 58
92 + = 92
43 + = 43
36 + = 39
60 + = 66
76 - = 70
58 + = 63
65 + = 71
78 - = 73
98 - = 98
95 + = 99
25 - = 25
70 + = 71
96 + = 99
65 - = 65
87 + = 88
89 - = 89