Perfect Squares and 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

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 9 is 3 because 3 x 3 = 9.

Front

What is the square root of 49?

Back

7

Front

What is the square root of 361?

Back

19

Front

What is the square root of 81?

Back

9

Front

What is the square root of 625?

Back

25

Front

What is the square root of 225?

Back

15

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. For example, since the square root of 16 is 4 (an integer), 16 is a perfect square.

Front

List the first five perfect squares.

Back

1, 4, 9, 16, 25.

Front

What is the relationship between perfect squares and their square roots?

Back

The square root of a perfect square is always a whole number (integer). For example, the square root of 36 is 6.