## Number Line Subtraction Sample - Section 3: Let's Subtract Together

Number Line Subtraction Sample
Number Line Subtraction Sample

# Subtract Across Zero Using Number Lines

Unit 2: Subtraction
Lesson 5 of 5

## Big Idea: Using a number line to subtract across zeros supports students conceptual understanding of crossing decades when subtracting.

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50 minutes

### Diane Siekmann

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