Squares & Square Roots

Front

What is a perfect square?

Back

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

Front

Write √81 as an exponential expression.

Back

9²

Front

Which of the following is a perfect square: 100, 110, 120, 59?

Back

100

Front

What is the square of 20?

Back

400

Front

Which number is a perfect square: 32, 25, 22, 24?

Back

25

Front

What is √256?

Back

16

Front

How do you find the square root of a number?

Back

To find the square root of a number, you determine which number multiplied by itself gives the original number. For example, √36 = 6 because 6 x 6 = 36.

Front

What is the square of 5?

Back

25

Front

If x² = 49, what is x?

Back

x = 7 or x = -7.

Front

What is the relationship between squares and square roots?

Back

The square root of a number is the value that, when multiplied by itself, gives the original number. For example, √25 = 5 because 5 x 5 = 25.