Square Roots/Estimating Square Roots

Front

What is a square root?

Back

A square root of a number x is a value y such that y² = x. For example, the square root of 16 is 4 because 4² = 16.

Front

How do you estimate the square root of a non-perfect square?

Back

To estimate the square root of a non-perfect square, find the two perfect squares it lies between and then approximate based on their square roots.

Front

What is the square root of 16?

Back

The square root of 16 is 4.

Front

What is the approximate value of √7 rounded to the nearest hundredth?

Back

The approximate value of √7 rounded to the nearest hundredth is 2.65.

Front

What is the square root of 25?

Back

The square root of 25 is 5.

Front

How can you determine the square root of a number using a number line?

Back

To determine the square root of a number using a number line, locate the number on the line and identify the closest perfect squares to estimate its square root.

Front

What is the square root of 47 approximately?

Back

The square root of 47 is approximately 6.86.

Front

What is the square root of 156?

Back

The square root of 156 is approximately 12.49.

Front

What is the relationship between square roots and perfect squares?

Back

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

Front

How do you round a square root to the nearest hundredth?

Back

To round a square root to the nearest hundredth, calculate the square root and then round the result to two decimal places.