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 √449 fall?

Back

21 and 22.

Front

How can you estimate the square root of a number?

Back

You can estimate the square root by finding the two perfect squares it lies between and determining which one it is closer to.

Front

What is the square root of 44?

Back

Between 6 and 7.

Front

What is the approximate value of √81?

Back

9, since 9 x 9 = 81.

Front

What is the relationship between perfect squares and square roots?

Back

A perfect square is a number that is the square of an integer, and its square root is that integer.

Front

Estimate the square root of 85.

Back

Between 9 and 10, closer to 9.

Front

What is the square root of 36?

Back

6, since 6 x 6 = 36.

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.

Front

Estimate the square root of 50.

Back

Between 7 and 8, closer to 7.