Understanding Square Roots

The video tutorial explains how to find principal square roots of various numbers, including 4, 100, 36, 121, 2500, 0, 400, 9, and a fraction. It demonstrates the process of identifying non-negative numbers that, when squared, equal the given radicand. The tutorial uses examples to illustrate the concept of square roots, emphasizing the use of perfect squares and prime factors for simplification.

What is the principal square root of 4?

• 3

• 4

• 2

• 1

Tags

CCSS.8.EE.A.2

Which number is the principal square root of 100?

• 5

• 10

• 15

• 20

Tags

CCSS.8.EE.A.2

What is the principal square root of 36?

• 4

• 5

• 6

• 7

Tags

CCSS.8.EE.A.2

The principal square root of 121 is:

• 11

• 12

• 9

• 10

Tags

CCSS.8.EE.A.2

How can the square root of 2500 be simplified?

• 40

• 50

• 25

• 30

Tags

CCSS.8.EE.A.2

What is the principal square root of 0?

• 2

• 3

• 1

• 0

Tags

CCSS.8.EE.A.2

Which number is the principal square root of 400?

• 15

• 18

• 20

• 25

Tags

CCSS.8.EE.A.2

What is the principal square root of 9?

• 4

• 2

• 5

• 3

Tags

CCSS.8.EE.A.2

If 64/49 is a fraction, what is its principal square root?

• 8/7

• 7/8

• 6/5

• 5/6

Tags

CCSS.8.EE.A.2

Which of the following is a perfect square?

• 81

• 72

• 64

• 50

Tags

CCSS.8.EE.A.2