14 + 7 =
21 - 19 =
0 - 0 =
22 - 0 =
10 + 7 =
25 + 5 =
13 . 0 =
18 + 11 =
22 : 22 =
24 + 1 =
27 + 0 =
23 + 3 =
0 + 26 =
22 . 1 =
12 + 13 =
5 - 5 =
19 - 2 =
18 + 9 =
9 . 3 =
6 - 0 =