Curated OER
What are the Inverse Properties of Addition and Multiplication?
The instructor demonstrates that when you add the opposite value of a given number to that number you will always get zero. Then she shows how multiplying by the inverse of any number except zero will equal 1.
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Inverse Property of Addition
This video demonstrates the inverse property of addition. Practice problems are available. [2:59]
Khan Academy
Khan Academy: Arithmetic Properties: Inverse Property of Addition
This video demonstrates the simple idea that a number plus its negative is 0.