Simplifying Square Roots with Prime Numbers

What is a square root of a number?

• A value that when added to itself gives the number

• A value that when divided by itself gives the number

• A value that when multiplied by itself gives the number

• A value that when subtracted from itself gives the number

Tags

CCSS.8.EE.A.2

Which professionals commonly use square roots?

• Chefs and Bakers

• Artists and Musicians

• Carpenters, Engineers, and Architects

• Doctors and Nurses

Tags

CCSS.8.EE.A.2

What is the first step in simplifying the square root of 20?

• Divide by 5

• Rewrite using factor pairs

• Add 10 to the number

• Subtract 2 from the number

Which factor pair is used to simplify the square root of 20?

• 1 and 20

• 3 and 7

• 4 and 5

• 2 and 10

What is the final simplified form of the square root of 20?

• 4 times the square root of 5

• 5 times the square root of 2

• 2 times the square root of 10

• 2 times the square root of 5

What is the factor pair used to simplify the negative square root of 105?

• 7 and 15

• 5 and 21

• 3 and 35

• 2 and 50

What is the final simplified form of the negative square root of 105?

• Negative square root of 105

• Negative square root of 15

• Negative square root of 21

• Negative square root of 35

What is the first factor pair used to simplify the square root of 72?

• 3 and 24

• 2 and 36

• 6 and 12

• 4 and 18

What is the final simplified form of the square root of 72?

• 4 times the square root of 2

• 8 times the square root of 2

• 6 times the square root of 2

• 10 times the square root of 2

What is the final simplified form of the negative square root of 41?

• Negative square root of 11

• Negative square root of 21

• Negative square root of 41

• Negative square root of 1