2 × 3
3 × 2
2 × 4
4 × 2
2 × 5
5 × 2
2 × 6
6 × 2
2 × 7
7 × 2
2 × 8
8 × 2
2 × 9
9 × 2
*
3 × 4
4 × 3
3 × 5
5 × 3
3 × 6
6 × 3
3 × 7
7 × 3
3× 8
8× 3
3 × 9
9 × 3
**
4 × 5
5 × 4
4 × 6
6 × 4
4 × 7
7 × 4
4 × 8
8 × 4
4 × 9
9 × 4
***
5 × 6
6 × 5
5 × 7
7 × 5
5 × 8
8 × 5
5 × 9
9 × 5
****
6 × 7
7 × 6
6 × 8
8 × 6
6 × 9
9 × 6
*****
7 × 8
8 × 7
7 × 9
9 × 7
*******
8 × 9
9 × 8