Classify 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 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, and the denominator is not zero.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; its decimal representation goes on forever without repeating.

Front

Give an example of a rational number.

Back

1/2 is a rational number because it can be expressed as a fraction.

Front

Give an example of an irrational number.

Back

√2 is an irrational number because it cannot be expressed as a fraction.

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but cannot be a fraction or decimal.

Front

Classify the number: -3.5

Back

-3.5 is a rational number because it can be expressed as -7/2.

Front

Classify the number: 0.333...

Back

0.333... is a rational number because it can be expressed as 1/3.

Front

What is a whole number?

Back

A whole number is a non-negative integer, which includes zero and all positive integers.

Front

Classify the number: 5

Back

5 is a natural number, which is a type of whole number.