CHRONO

10 s.

Additions et soustractions à trous.

CHRONO

0 s.
29 + = 35
25 - = 20
35 - = 34
89 + = 90
19 - = 14
48 + = 54
13 + = 16
44 + = 48
83 + = 83
67 - = 67
75 + = 77
8 - = 3
28 + = 32
36 - = 34
80 - = 80
97 + = 97
42 + = 48
61 - = 57
40 + = 45
82 - = 79