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Unknown Number Flip Cards- Addition and Subtraction

Introduce equations with unknown numbers using these hands-on flip cards.

Print, cut and laminate cards. Fold each tab over and secure with a paper clip. Use the flip cards during a hands-on lesson, or as a math center.

Meets Common Core Standard 1.OA.8: Determine the unknown whole number in an addition or subtraction equation relating three whole numbers.

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K. Almaraz

Keywords: math, basic operations, tools for common core, kindergarten, 1st grade, 2nd grade, activities, printables, math centers
Author: K Almaraz

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