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## Early math review

### Course: Early math review > Unit 6

Lesson 4: Strategies for adding 2- and 3-digit numbers- Breaking apart 3-digit addition problems
- Break apart 3-digit addition problems
- Solving 3-digit addition in your head
- Addition using groups of 10 and 100
- Add using groups of 10 and 100
- Adding and subtracting on number line
- Add on a number line
- Select strategies for adding within 1000

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# Add on a number line

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