10 5x 2 20 July 8, 2019 16 32 64 128 9x 10 )-( 5x 2 )= 20 5x 2 20x 10 5x 2 20x 10 0 5x 10 5x2 20 5x 10 5x2 20 hcf 10 5 x 2 )= 5x 20 5x 2 6x 10 x 20 180 5x 2 6x 10 x 20 2 5x 10 5 9
