6 + 6 = 7 − 6 = 5 + 6 = 14 − 14 =
0 + 0 = 10 + 7 = 7 + 10 = 15 − 11 =
15 − 1 = 20 − 13 = 16 − 16 = 7 + 0 =
2 − 2 = 9 − 4 = 9 + 7 = 20 − 3 =
14 − 8 = 8 + 4 = 10 + 3 = 15 − 2 =
5 + 13 = 3 + 11 = 9 − 6 = 15 − 10 =
16 − 8 = 14 + 6 = 1 + 5 = 11 − 1 =
16 + 4 = 11 − 7 = 2 + 10 = 18 − 8 =
19 − 12 = 9 − 1 = 12 + 4 = 9 + 9 =
4 + 6 = 8 − 6 = 7 + 6 = 2 + 12 =
17 + 3 = 8 + 3 = 12 + 1 = 12 + 5 =
2 + 9 = 5 + 12 = 19 − 4 = 14 − 10 =
13 + 2 = 19 − 11 = 16 − 15 = 19 − 15 =
4 − 1 = 3 + 17 = 11 − 3 = 17 − 11 =
1 + 4 = 20 − 18 = 17 − 6 = 7 + 3 =
18 − 2 = 5 + 10 = 6 + 13 = 8 + 7 =
3 − 2 = 8 + 8 = 7 + 8 = 3 + 14 =
12 − 9 = 15 − 6 = 14 − 11 = 17 − 16 =
18 − 17 = 10 − 4 = 20 − 1 = 14 − 5 =
20 − 17 = 17 − 9 = 6 − 5 = 10 − 7 =
18 − 4 = 17 − 10 = 1 + 9 = 7 + 2 =
4 + 5 = 19 − 10 = 5 + 15 = 11 + 4 =
3 − 1 = 7 + 12 = 16 − 11 = 2 + 14 =
4 + 12 = 8 + 10 = 9 + 4 = 10 + 4 =
1 + 14 = 8 − 1 = 12 + 7 = 11 + 6 =