Addition and Subtraction Properties

This math video for elementary children illustrates and describes the commutative and associative properties. The relationship between addition and subtraction is also demonstrated. Kids will see and practice using these properties throughout the video. USATestprep is a simple and effective way to supplement your instruction with high-quality 100 standards-aligned practice items. Choose from a complete catalog of ELA math social studies and science resources. Free demos and no obligation 30-day trials are available. Visit www.usatestprep.com.,

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