Using the Partial Sums Method to Solve Addition Problems

The video tutorial explains the partial sums method for addition, which involves breaking numbers into expanded form to simplify the addition process. It demonstrates this method with examples, including a real-world scenario of calculating travel distances. The partial sums method is highlighted as a useful strategy for checking work and solving addition problems mentally.

What are the advantages of using the partial sums method for addition?

How did Natalie calculate the total miles traveled using the partial sums method?