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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
Problem
Miriam thinks about as to solve in her head. Here is part of a number line to represent her thinking.
Which number line correctly labels the other tick marks?