Adding Square Roots Lesson

3 Slides • 4 Questions

1

Adding and Subtracting Square Roots

Unit 1

2

Square Root Review

Definition : The square root of a positive number is the number when multiplied by itself, equals to the given number.

Examples:

\sqrt{4}=\sqrt{2\times2}=2

\sqrt{9}=\sqrt{3x3}=3

3

Adding and Subtracting Square Roots

Rules
1. You can only add and subtract roots of the same number. $\sqrt{2}+\sqrt{2}\ is\ ok\ \ \ \ \ \ \ \ \ \ \sqrt{2}+\sqrt{3}\ is\ not\ ok$

2. You add and subtract the amount in front of the square root.

3\sqrt{5}+4\sqrt{5}=7\sqrt{5}

3. If there is no number in front of a square root, that counts as 1 square root.

\sqrt{2}=1\sqrt{2}\ \ \ \ \ so\ \ \ \ \sqrt{2}+4\sqrt{2}=5\sqrt{2}

4

Multiple Choice

$5\sqrt{5}+2\sqrt{5}=?$

1

$7\sqrt{10}$

2

$7\sqrt{5}$

3

$10\sqrt{5}$

4

$7\sqrt{25}$

5

Multiple Choice

$8\sqrt{2}-3\sqrt{2}$

1

$5\sqrt{2}$

2

$5\sqrt{4}$

3

$11\sqrt{2}$

6

Multiple Choice

$\sqrt{7}+7\sqrt{7}-2\sqrt{7}$

1

$5\sqrt{7}$

2

$6\sqrt{7}$

3

$8\sqrt{7}$

4

$9\sqrt{7}$

7

Multiple Choice

$3\sqrt{2}+2\sqrt{3}$

1

$6\sqrt{6}$

2

$5\sqrt{5}$

3

$3\sqrt{2}+2\sqrt{3}$

4

$5\sqrt{2}$

Adding and Subtracting Square Roots

Unit 1

Show answer

Auto Play

Slide 1 / 7

SLIDE

Similar Resources on Wayground

6 questions

การแยกตัวประกอบของพหุนาม

Presentation

•

8th Grade

6 questions

8º B - Sully - Aula 59

Presentation

•

8th Grade

6 questions

Unit 1: Comparing & Analyzing Review

Presentation

•

8th Grade

6 questions

PRESENTASI. RETNO

Presentation

•

8th Grade

9 questions

5 класс тема 19 урок 1

Presentation

•

8th Grade

6 questions

MAC 2 | Lesson 5-7 | Wrap it Up

Presentation

•

KG

7 questions

Course 3 - Two-Step Equations Lesson

Presentation

•

8th Grade

7 questions

QQ: Simplifying Radical Expressions with Variables

Presentation

•

8th Grade

Popular Resources on Wayground

24 questions

PBIS-HGMS Day 10

Quiz

•

6th - 8th Grade

10 questions

HCS SCI 03 Summer School Review 3

Quiz

•

3rd Grade

11 questions

Home Scope

Quiz

•

7th - 8th Grade

15 questions

HCS SCI 05 Summer School Assessment 3 Review

Quiz

•

5th Grade

35 questions

Lufkin Road Middle School Student Handbook & Policies Assessment

Quiz

•

7th Grade

18 questions

Geo 11.3 Area of Circles and Sectors

Quiz

•

9th - 11th Grade

Discover more resources for Mathematics

24 questions

PBIS-HGMS Day 10

Quiz

•

6th - 8th Grade

11 questions

Home Scope

Quiz

•

7th - 8th Grade