Real Number System

Front

What is a Rational Number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where 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 a Whole Number?

Back

Whole numbers are non-negative numbers without fractions or decimals, including zero (0, 1, 2, 3, ...).

Front

What is a Natural Number?

Back

Natural numbers are the set of positive integers starting from 1 (1, 2, 3, ...).

Front

Classify the number 0:

Back

0 is a whole number, an integer, and a rational number.

Front

Classify the number -5:

Back

-5 is an integer, a rational number, and a real number.

Front

Classify the number 3.14:

Back

3.14 is a rational number and a real number.

Front

Classify the number √2:

Back

√2 is an irrational number and a real number.

Front

What is the difference between Rational and Irrational Numbers?

Back

Rational numbers can be expressed as fractions, while irrational numbers cannot be expressed as fractions.

Front

What are Integers?

Back

Integers are whole numbers that can be positive, negative, or zero (-3, -2, -1, 0, 1, 2, 3, ...).