Perfect Squares and Square Roots

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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.

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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 because 4 x 4 = 16.

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Front

Which number is a perfect square: 20 or 25?

Back

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Front

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

Back

The square root of a perfect square is always an integer.