## Students work with number lines.mov - Section 2: Introduction to New Material

Students work with number lines.mov
Students work with number lines.mov

# Change Unknown Word Problems with Number Lines

Unit 6: Three-Digit Addition and Subtraction
Lesson 12 of 13

## Big Idea: Students solve change unknown story problems using a number line. This lesson gives students a new strategy to attach change unknown word problems.

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5 teachers like this lesson
Standards:
Subject(s):
Math, Number lines , Number Sense and Operations, addition, subtraction, Word Problem
55 minutes

### Caitlin Vaughan

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