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