Finding Square Roots of Imperfect Numbers

What is the square root of 20?

• 2√5 or approximately 4.472

• 4

• 5√2

• 3√3

Estimate the square root of 50.

• 7.07

• 6.5

• 8.2

• 9.0

What is the square root of 30 rounded to the nearest whole number?

• 5

• 4

• 7

• 6

Find the square root of 45.

• 2√10

• 3√5

• 6

• 9

What is the approximate value of the square root of 70?

• 9.0

• 8.0

• 8.37

• 7.5

Calculate the square root of 85.

• 10.1

• 7.9

• 9.219

• 8.5

What is the square root of 99?

• 8.5

• 9.0

• 9.949

• 10.5

Estimate the square root of 65.

• 8.06

• 7.5

• 9.0

• 8.5

What is the square root of 10?

• 4.0

• 3.1623

• 3.0

• 3.5

Find the square root of 18.

• 4√2

• 6

• 3√2

• 2√9