Mental Math Strategies Posters: Addition & Subtraction to 20

While teaching second grade for 10 years, I noticed that kids really struggled with math facts to 20 in both addition and subtraction. They had a hard time memorizing math facts and make careless errors. Once I started teaching students mental math strategies, they were able to add and subtract with fewer errors and frustration. This even helped them to learn how to multiply and divide with ease. I created this product based on exactly what students needed to feel successful in learning, understanding and practicing mental math strategies in addition and subtraction to 20.

This product includes:

•Two mental math strategies reference sheets for teacher and students –Addition mental math strategies and subtraction mental math strategies.

Addition Mental Math Strategy Posters —use these for reference while teaching, display on a bulletin board, or post in your math center, etc.

•Doubles

•Doubles Plus One

•Doubles Plus Two

•Doubles Minus One

•Doubles Minus Two

•Combinations of 10

•Add One to Nine

•Counting Up

•Make Ten

•Adding Ten

•Commutative Property

Subtraction Mental Math Strategy Posters —use these for reference while teaching, display on a bulletin board, or post in your math center, etc.

•Counting Back

•Counting Up

•Doubles

•Think Addition

•Fact Families

•Subtracting from Ten

I hope these reference posters are useful for teaching and displaying mental math strategies to help your students build their math muscles to become strong, confident mathematicians.

This is a digital download (PDF).