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