This document provides guidance on showing work for math problems. It recommends writing out each step to allow for partial credit if incorrect and to help identify errors. An example problem is shown, solving the equation "3 times a number subtracted from 9 is equal to 2 times the same number increased by 4". The full work is displayed, including setting up the equation, subtracting variables and constants, dividing by the coefficient, and plugging back in to check the solution.