This document provides step-by-step instructions for solving word problems involving subtraction. It uses an example word problem about a girl named Amanda receiving $2500 from her parents for Christmas and spending $1575 on a book to show the four steps: 1) understand the problem by identifying what is asked and given facts, 2) plan the operation (subtraction) based on clue words and write the number sentence, 3) solve the subtraction problem to find Amanda had $925 left, and 4) check the answer by adding the amounts to verify the total equals the amount originally received.