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