CHRONO

10 s.

Additions et soustractions à trous.

CHRONO

0 s.
13 + = 14
82 - = 79
89 + = 93
92 + = 96
19 - = 18
47 + = 48
76 + = 79
55 + = 61
27 - = 22
16 + = 17
27 + = 27
28 - = 25
91 + = 91
26 + = 31
26 - = 24
26 - = 20
20 - = 14
29 + = 31
57 - = 52
87 + = 93