6 2x 3 ) 4 10 July 8, 2019 16 32 64 128 6 2x 3 )+ 4 10 10 8x 6 3 4 2x 6 x 4 )+ 10 2x 3 6 9 (- 3x 9 )= 3 2 2x 4 )- 10 5x 6 10x 4 2x 3 4x