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Course: 2nd grade?>?Unit 3
Lesson 2: Strategies for adding within 100- Breaking apart 2-digit addition problems
- Break apart 2-digit addition problems
- Adding 53+17 by making a group of 10
- Adding by making a group of 10
- Add 2-digit numbers by making tens
- Strategies for adding 2-digit numbers
- Select strategies for adding within 100
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Break apart 2-digit addition problems
Problem
Mia isn't sure how to add .
Help Mia by choosing an addition problem that is the same as .