7x 6 8 x 2 July 8, 2019 16 32 64 128 6 8 x 2 )= 3 7x 7x 2 8 )-( 4x 2 x 6 7x 8 2 x 5 )= 6 2 x 3 7x 6 6x 5 2x 3 x 8 2x 7 7 x 70
