3 : 1 =
10 : 5 =
1 - 0 =
21 - 0 =
16 : 2 =
6 + 1 =
25 + 1 =
19 - 5 =
25 - 13 =
26 . 0 =
21 - 11 =
28 : 1 =
17 + 6 =
13 - 2 =
23 + 5 =
14 + 0 =
28 - 21 =
24 . 1 =
23 + 1 =
10 . 3 =