Math Timed Tests: Number within 20 Addition and Subtraction - Softcover

Inhaltsangabe

Addition and subtraction skills is a huge and important subject. These math workbook are a great way to help your students master numbers up to 20 addition and subtraction with some regrouping and without regrouping.
This workbook includes:

• 2500 practice problems (with answer key)
• addition within 20
• subtraction within 20
• mixed addition and subtraction within 20

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