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 is √8?

Back

Between 2 and 3.

Front

How can you estimate the square root of a number?

Back

You can estimate the square root by finding two perfect squares it lies between.

Front

What is the approximate value of √20?

Back

Approximately 4.47, which is between 4 and 5.

Front

Which square root is between 11 and 12 on a number line?

Back

√128.

Front

What is the square root of 44?

Back

Approximately 6.63, which is between 6 and 7.

Front

How do you determine if a square root is closer to the lower or upper whole number?

Back

By comparing the number to the squares of the whole numbers it lies between.

Front

What is the square root of 77?

Back

Approximately 8.77, which is between 8 and 9.

Front

What is the relationship between perfect squares and square roots?

Back

Perfect squares are numbers that have whole number square roots.

Front

What is √100?

Back

10.