Subtraction Facts that StickSubtraction Facts That Stick will guide you, step by step, as you teach your child to understand and memorize the subtraction facts, from 1 1 through 9 9. Hands on activities, fun games your child will love, and simple practice pages help young students remember the subtraction facts for good. In 15 minutes per day (perfect for after school, or as a supplement to a homeschool math curriculum) your child will master the subtraction facts, gain a