Real Number System

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

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What is a rational number?

Back

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What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero. Examples include -3, 0, and 5.

Front

What is a natural number?

Back

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

Front

What is the difference between whole numbers and natural numbers?

Back

Whole numbers include all natural numbers and zero (0, 1, 2, 3, ...), while natural numbers start from 1.

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Front

What is the classification of the number 0?

Back

The number 0 is classified as a whole number, an integer, and a rational number.

Front

Can a negative number be a rational number?

Back

Yes, negative numbers can be rational numbers if they can be expressed as a fraction of two integers.