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