Main content

### Course: 8th grade (Eureka Math/EngageNY) > Unit 7

Lesson 1: Topic A: Square and cube roots- Intro to square roots
- Square roots of perfect squares
- Square roots
- Intro to cube roots
- Cube roots
- Worked example: Cube root of a negative number
- Equations with square roots & cube roots
- Square root of decimal
- Roots of decimals & fractions
- Equations with square roots: decimals & fractions
- Dimensions of a cube from its volume
- Square and cube challenge
- Square roots review
- Cube roots review
- Intro to rational & irrational numbers
- Classifying numbers: rational & irrational
- Classify numbers: rational & irrational
- Classifying numbers
- Classify numbers
- Classifying numbers review
- Approximating square roots
- Approximating square roots walk through
- Approximating square roots
- Approximating square roots to hundredths

© 2024 Khan AcademyTerms of usePrivacy PolicyCookie Notice

# Square roots of perfect squares

# Introduction

In this article, you'll learn how to take the square root of perfect squares!

# Example

**Step 1:**Ask, "What number squared equals

**Step 2:**Notice that

**The answer**:

### Reflection question

# Practice 1

### Reflection question

# Practice 2

# Practice 3

# Challenge problem

## Want to join the conversation?

- if the root was a double digit would u also multiply it self for example 14 x 14(7 votes)
- yes i would because it would be the same as it would by its self(3 votes)

- what is the square route of 69(1 vote)
- This is so easy try harder(1 vote)
- How can be the greater number 6 with the 40(1 vote)
- asically, It's when you look at the what's the square root of 100 it will be 10, when you multiply it by itself. Also, when you have 144 you can easily find the square root of 144 which is 12. But if you can do it another way then doing the sqaure root method you can look at conneect to sqaures slide.If you have any other questions or other comments, let me know and I'll explain more,

Have a wodnerful day.(1 vote) - What if the square root is an irrational number?(0 votes)
- why is this so confusing to me Im awesome at math kinda xp(0 votes)