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### Course: Arithmetic (all content) > Unit 3

Lesson 1: Multiplication intro- Multiplication as equal groups
- Intro to multiplication
- Basic multiplication
- Multiplication with arrays
- Understand multiplication using groups of objects
- Multiply with arrays
- Worked example: Whole numbers on the number line
- Represent multiplication on the number line
- More ways to multiply
- Ways to represent multiplication

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# Multiply with arrays

## Problem

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