Perfect Squares and Square Roots

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

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

Calculate 9².

Back

81

Front

Calculate 20².

Back

400

Front

Calculate 8².

Back

64

Front

Calculate 5².

Back

25

Front

Calculate 1².

Back

1

Front

What is the square of 0?

Back

The square of 0 is 0, since 0 x 0 = 0.

Front

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

Back

The square root of a perfect square is always an integer. For example, the square root of 36 is 6, which is an integer.

Front

List the first five perfect squares.

Back

1, 4, 9, 16, 25.