## 4.OA.2

4.OA.2 – Multiply or divide to solve word problems involving multiplicative comparison, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem, distinguishing multiplicative comparison from additive comparison.^{1}

**Internet Resources (Videos, Websites, etc.)**

Illustrative Mathematics Project

- Illustrations

K-5 Math Teaching Resources

- Sample Multiplicative Comparison Problems

Khan Academy

- Multiplication and division word problems 2

NCTM Illuminations

- Exploring Equal Sets
- Finding Products
- Hopping on the Number Line
- Keeping It All Together
- Multiplication Stories
- Problem-Solving Tasks

Online Practice from IXL

- Multiplication: Estimate products: word problems
- Multiplication: Multiply a 2-digit number by a 2-digit number: word problems
- Multiplication: Multiply a 2-digit number by a larger number: word problems
- Multiplication: Multiply numbers ending in zeroes: word problems
- Division: Division facts to 12: word problems
- Division: Divide larger numbers, one-digit divisors: word problems
- Division: Divide numbers ending in zeroes, multi-digit divisors: word problems
- Division: Divide by 2-digit numbers: word problems
- Division: Divide larger numbers by 2-digit numbers: word problems
- Mixed operations: Addition, subtraction, multiplication, and division word problems
- Mixed operations: Estimate sums, differences, products, and quotients: word problems
- Money: Price lists with multiplication
- Measurement: Compare customary units by multiplying
- Measurement: Convert between metric and customary units

Shodor

- Spy Game

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