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. Examples include 1/2, 3, and -4.

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. Examples include pi (π) and the square root of 2 (√2).

Front

What is a Natural Number?

Back

Natural numbers are the set of positive integers starting from 1, 2, 3, and so on. They do not include zero or negative numbers.

Front

What is a Whole Number?

Back

Whole numbers are all natural numbers including zero. They are non-negative integers: 0, 1, 2, 3, ...

Front

What is an Integer?

Back

Integers are whole numbers that can be positive, negative, or zero. Examples include -3, 0, and 5.

Front

What is the Real Number System?

Back

The real number system includes all the numbers that can be found on the number line. This includes rational numbers (like fractions and integers) and irrational numbers.

Front

Classify the number 3.5.

Back

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

Front

Classify the number -7.

Back

-7 is an integer and also a rational number.

Front

Classify the number 0.

Back

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

Front

Back