Classifying Real Numbers

Front

What is a real number?

Back

A real number is any number that can be found on the number line, including both rational and irrational numbers.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a fraction of two integers. Its decimal representation is non-repeating and non-terminating.

Front

Estimate the square root of 100.

Back

10

Front

What is the opposite of a real number?

Back

An imaginary number is considered the opposite of a real number.

Front

Estimate the square root of 225.

Back

15

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction, where both the numerator and the denominator are integers.

Front

Estimate the square root of 64.

Back

8

Front

Which of the following is an irrational number? (Example: √2, 1/2, 3.5, 4)

Back

√2 is an irrational number.

Front

What is the decimal approximation of π (pi)?

Back

The decimal approximation of π is approximately 3.14.

Front

Estimate the square root of 50.

Back

Approximately 7.1.