Multiplication by 4
4 x 5
20
6 x 5
30
7 x 5
35
8 x 5
40
9 x 5
45
4 x 9
36
6 x 9
54
7 x 9
63
8 x 9
72
9 x 9
81
4 x 12
48
72
7 x 12
84
8 x 12
96
9 x 12
108
4 x 15
60
6 x 15
90
7 x 15
8 x 15
120
9 x 15
135
4 x 24
96
6 x 24
144
7 x 24
168
8 x 24
192
9 x 24
216