This document appears to show work for solving several math problems. It includes expressions like 2 x 8 x 4 = 16, 7 x 8 x 6 x 2 x 18 x 3 = 56 x 3 x 54 = 53 x 54 = 107, and 15 x 2 x 3 = 15 x 2 x 9 = 3 = 15 x 18 = 3 = 15 x 6 = 9. The document provides step-by-step workings to solve multiple math equations in 3 sentences or less.