Addition & Subtraction: Math Videos

This series covers the basics of adding and subtracting whole numbers. You will practice adding two and three digit numbers, learn how carrying works, and see how to borrow when subtracting. There is also a handy mental math method for subtracting in your head. These are the building blocks for all other math, from shopping to budgeting to test prep. No prior knowledge is needed.

Note: All Khan Academy content is available for free at www.khanacademy.org