This document outlines 13 steps for learning subtraction, beginning with taking away objects to 10 and writing number sentences, then progressing to arranging subtraction sentences, reading subtraction sentences, and solving subtraction problems on a number line. It provides examples of subtraction number sentences such as 5 - 3 =, 7 - 4 =, and 10 - 3 = as practice for learners to work through the steps.