CHRONO

10 s.

Additions et soustractions à trous.

CHRONO

0 s.
44 - = 39
66 + = 72
51 + = 52
13 + = 16
19 + = 22
3 - = 0
87 + = 92
90 + = 92
2 - = 2
35 - = 34
30 - = 28
20 + = 25
89 + = 94
15 + = 16
45 + = 51
69 - = 64
10 + = 13
17 + = 22
76 + = 76
97 - = 96