Adding Multiple Two-Digit Numbers by Decomposing

This lesson teaches how to add more than two two-digit numbers by decomposing them into tens and ones. It explains the commutative property of addition and provides examples using jelly beans and a bike trip to illustrate the concept. The lesson concludes with a summary of the decomposition method.

What is the final total of jelly beans James ate?

Describe the process Estefani used to find the total miles she rode.