CHRONO

10 s.

Additions et soustractions à trous.

CHRONO

0 s.
27 + = 32
27 + = 30
44 - = 42
77 - = 77
46 - = 40
22 - = 19
45 - = 41
59 + = 60
70 + = 71
16 - = 16
11 - = 9
33 - = 32
93 + = 95
6 - = 3
67 + = 67
1 - = 0
43 + = 44
96 + = 98
44 + = 47
97 - = 92