Square Roots/Perfect Squares

Front

What is a perfect square?

Back

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

Front

List the first five perfect squares.

Back

1, 4, 9, 16, 25.

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. For example, the square root of 16 is 4.

Front

Is 49 a perfect square?

Back

Yes, 49 is a perfect square because it is 7 multiplied by 7.

Front

Which of the following is NOT a perfect square: 49, 81, 111, 144?

Back

111 is NOT a perfect square.

Front

What is √81?

Back

9.

Front

What is the square of 11?

Back

121.

Front

True or False: To find the square root of a number, you must divide it by 2.

Back

False.

Front

What is the square of 9?

Back

81.

Front

If x is a perfect square, what can you say about its square root?

Back

The square root of x is an integer.