Classify Real 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. It cannot be written as a ratio of two integers.

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but does not include fractions or decimals.

Front

What is a whole number?

Back

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

Front

What is a natural number?

Back

A natural number is a positive integer, starting from 1 and going upwards (1, 2, 3, ...).

Front

Classify the number 0.5.

Back

0.5 is a real number and a rational number.

Front

Classify the number -3.

Back

-3 is a real number, an integer, and a rational number.

Front

Classify the number √16.

Back

√16 is a real number, a rational number, an integer, and a whole number.

Front

Classify the number 7.

Back

7 is a real number, a rational number, an integer, a whole number, and a natural number.

Front

Classify the number π (pi).

Back

π is a real number and an irrational number.