## Why the Properties of Addition ARE Useful to Students

When my oldest son was in seventh grade, he had trouble with a problem in his 7th-grade math book. It concerned one of the Properties of Addition. I couldn’t believe he didn’t know the answer!…

When my oldest son was in seventh grade, he had trouble with a problem in his 7th-grade math book. It concerned one of the Properties of Addition. I couldn’t believe he didn’t know the answer!…

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