Multiply by
2
2
1x2
2
4x3
12
1x4
4
2x5
10
2x6
12
10x7
70
5x8
40
4x9
36
2x10
20
8x11
88
2x12
24
4x2
8
11x3
33
3x4
12
9x5
45
11x6
66
1x7
7
3x8
24
10x9
90
7x10
70
4x11
44
7x12
84
8x2
16
3x3
9
10x4
40
1x5
5
1x6
6
3x7
21
8x8
64
1x9
9
11x10
110
10x11
110
1x12
12