Regrouping and Composing Hundreds and Tens When Adding

This video tutorial teaches how to regroup when adding numbers by composing hundreds or tens using base 10 blocks. It explains the concept of base 10 blocks, including ones, tens, and hundreds, and demonstrates the process through two examples: adding 239 and 325, and adding 467 and 256. The tutorial emphasizes the importance of lining up numbers by place value and regrouping when there are too many ones or tens.

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