The power of regrouping: two-digit addition

Today we're going underwater to do some addition at the aquarium! Woah, there are tons and tons of fish here! In this lesson, students solve two digit addition problems while regrouping in the ones place. Learning to regroup, or "carry" groups of ten is an incredibly important math skill. This video uses models and charts to break down this crucial skill for students and encourage fluency. Wait, did I just see a mermaid?!

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Addition - 2nd grade