4 x 10 3 x 20 July 8, 2019 16 32 64 128 4 5 x 3 10 x 20 7 3x 4 x 10 )= x 20 1 2 x 10 )= 3 4 x 20 10 4 x 5 2 x 3 20 6 x 10 20 3 x 10 4 4 x 3 x 30 20 10 4 x 4 x 4 x 4 x 3/10
