Main content

## Early math review

### Course: Early math review > Unit 5

Lesson 6: Strategies for adding and subtracting within 100- Adding 53+17 by making a group of 10
- Add 2-digit numbers by making tens
- Adding by making a group of 10
- Add 2-digit numbers by making tens 2
- Strategies for adding 2-digit numbers
- Select strategies for adding within 100
- Addition and subtraction with number lines
- Add within 100 using a number line
- Subtract within 100 using a number line

© 2023 Khan AcademyTerms of usePrivacy PolicyCookie Notice

# Add within 100 using a number line

## Problem

Stuck?

Stuck?