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 the set of non-negative integers, including zero. They are 0, 1, 2, 3, and so on.

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 rational and irrational numbers. It encompasses integers, whole numbers, natural numbers, and fractions.

Front

How can you classify the number 120?

Back

120 is classified as a natural number, whole number, integer, rational number, and real number.

Front

What type of number is 3.5 repeating (3.555...) classified as?

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3.5 repeating is classified as a rational number because it can be expressed as a fraction (e.g., 35/10).

Front

What is the significance of Pi (π) in mathematics?

Back

Pi (π) is an irrational number that represents the ratio of the circumference of a circle to its diameter. It is approximately equal to 3.14159.

Front

Classify the number 1.01276894...

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1.01276894... is classified as an irrational number because it has a non-repeating, non-terminating decimal.