CHRONO

10 s.

Additions et soustractions à trous.

CHRONO

0 s.
53 + = 53
77 + = 83
92 - = 92
48 - = 43
20 - = 14
45 + = 46
31 - = 28
17 - = 15
64 - = 58
57 - = 56
48 - = 47
81 - = 78
65 - = 60
18 + = 21
27 + = 28
90 - = 86
39 + = 44
19 + = 21
43 - = 43
22 + = 27