Related Post: 5 X 6 )- 8x 5 X 6 X8 5 X 8 X 6 5 X 8 )-( X 6 )= 18 4 5 X 6 )+ 8x =- 13 X 1 5 X 6 8x 5 X 3 )= 8x 6 5 4 X 6 X8