5 + 13 =
10 . 0 =
2 - 2 =
15 . 2 =
4 : 2 =
17 + 4 =
7 - 2 =
4 + 5 =
7 : 1 =
25 . 0 =
16 . 0 =
18 . 1 =
10 + 0 =
24 + 2 =
0 + 26 =
27 + 0 =
20 - 19 =
17 - 1 =
15 : 1 =
1 . 18 =