Estimating Square Roots

Front

What is the square root of a number?

Back

The square root of a number is a value that, when multiplied by itself, gives the original number.

Front

Between which two whole numbers does the square root of 8 lie?

Back

The square root of 8 lies between 2 and 3.

Front

How can you estimate the square root of a number?

Back

To estimate the square root, find two consecutive whole numbers whose squares are closest to the number.

Front

What is the approximate value of the square root of 30?

Back

The square root of 30 is between 5 and 6.

Front

Which square root falls between 11 and 12?

Back

The square root of 128 falls between 11 and 12.

Front

What is the square of 3?

Back

The square of 3 is 9.

Front

What is the square of 4?

Back

The square of 4 is 16.

Front

If the square root of a number is between 2 and 3, what can you say about the number?

Back

The number is between 4 and 9.

Front

What is the relationship between square roots and perfect squares?

Back

A perfect square is a number that has an integer as its square root.

Front

How do you determine if a number is a perfect square?

Back

A number is a perfect square if its square root is an integer.