Square Root Practice

Front

What is a perfect square?

Back

A perfect square is a number that can be expressed as the product of an integer with itself. 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 because 4 x 4 = 16.

Front

List the first ten perfect squares.

Back

The first ten perfect squares are: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100.

Front

How do you estimate the square root of a non-perfect square?

Back

To estimate the square root of a non-perfect square, find the two perfect squares it lies between and then approximate the value based on their square roots.

Front

What is the square root of 0?

Back

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

Front

What is the relationship between squares and square roots?

Back

The square root is the inverse operation of squaring a number. If x is a number, then the square root of x squared (√(x²)) is x.

Front

What is the square root of 1?

Back

The square root of 1 is 1, since 1 x 1 = 1.

Front

How can you determine if a number is a perfect square?

Back

A number is a perfect square if its square root is an integer. You can check this by calculating the square root and seeing if it is a whole number.

Front

What are the square roots of 36?

Back

The square roots of 36 are 6 and -6, since both 6 x 6 and (-6) x (-6) equal 36.

Front

What is the approximate value of the square root of 50?

Back

The approximate value of the square root of 50 is between 7 and 8, closer to 7.1.