Adding Within 1,000 Using Base 10 Blocks

This video tutorial teaches how to add numbers within 1,000 using base 10 blocks. It explains the concept of breaking numbers into hundreds, tens, and ones, and demonstrates the process with examples. The tutorial highlights common mistakes, such as listing numbers in place values instead of combining them. By the end, viewers will understand how to correctly add numbers using base 10 blocks.

What common misunderstanding might occur when adding numbers in their place values?

Describe how to add the numbers 34 and 865 using base 10 blocks.