Perfect 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, 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 16 is 4.

Front

Calculate 13².

Back

169

Front

Calculate 14².

Back

196

Front

Calculate 19².

Back

361

Front

Calculate 20².

Back

400

Front

Calculate 17².

Back

289

Front

What is the square of 0?

Back

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

Front

What is the square of 1?

Back

The square of 1 is 1, since 1 × 1 = 1.

Front

List the first five perfect squares.

Back

1, 4, 9, 16, 25.