Adding Numbers Using the Partial Sums Method

The video tutorial teaches how to solve addition problems using the partial sums method. It begins with a problem about calculating total miles traveled, introduces expanded notation, and highlights common mistakes in addition. The partial sums method is explained in detail, followed by a step-by-step example. Finally, the method is applied to solve the original problem, demonstrating its effectiveness in simplifying addition.

What are the expanded forms of the numbers 729 and 243?

How can you check your work when using the traditional method of addition?