Estimating Square Roots

Front

What is a perfect square?

Back

A perfect square is a number that can be expressed as the product of an integer with itself. For example, 1, 4, 9, 16, and 25 are perfect squares.

Front

Which number is NOT a perfect square: 196, 169, 121, or 132?

Back

132 is NOT a perfect square.

Front

How do you estimate the square root of a number?

Back

To estimate the square root, find two perfect squares between which the number lies and then approximate the value.

Front

What is the square root of 119 rounded to the nearest hundredth?

Back

The square root of 119 rounded to the nearest hundredth is approximately 10.9.

Front

In between what two integers is the square root of 77?

Back

The square root of 77 is between 8 and 9.

Front

Which number has a square root that is between 5 and 6: 48, 81, 28, or 36?

Back

28 has a square root that is between 5 and 6.

Front

What is the square root of 13 rounded to the nearest hundredth?

Back

The square root of 13 rounded to the nearest hundredth is approximately 3.6.

Front

What is the approximate value of √25?

Back

The approximate value of √25 is 5.

Front

What is the method to find the square root of a non-perfect square?

Back

Use estimation by finding the nearest perfect squares and then refining the estimate.

Front

What is the square root of 36?

Back

The square root of 36 is 6.