4 x 3
12
(3x4) + ( 3 x 2 ) =
18
5 x 8
40
( 2 x 5 ) + ( 2 x 3 )=
16
7 x 5
35
( 4 x 5 ) + ( 4 x 3) =
32
6 x 10
60
( 5 x 6 ) + ( 5 x 7 ) =
65
9 x 9
81
( 2 x 5 ) + ( 2 x 10) =
30