42 X 21
42 x 21=882
56 x 10
56 x 10= 560
7 x 8
56
38 X 72
40 X 70 = 2736
35 X 35
35 x 35= 1225
9 x 7
63
63 X 32
63 x 32= 2016
12 x 11
132
4 X 10? = 4000
3