Rational Numbers

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 are natural numbers?

Back

Natural numbers are the set of positive integers starting from 1, 2, 3, and so on.

Front

What are whole numbers?

Back

Whole numbers are the set of non-negative integers, including zero: 0, 1, 2, 3, ...

Front

What are integers?

Back

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

Front

What is the difference between counting numbers and whole numbers?

Back

Counting numbers are the natural numbers starting from 1, while whole numbers include 0 along with counting numbers.

Front

Classify the number -23.

Back

-23 is a rational number, an integer, and a real number.

Front

What is an example of a number that is an integer but not a counting number?

Back

0 is an integer but not a counting number.

Front

Which of the following is a set of counting numbers? {2, 4, 6, 8, 9} or {0, 1, 2, 3, 4, 5}?

Back

{2, 4, 6, 8, 9} is a set of counting numbers.

Front

What is a real number?

Back

A real number is any value that represents a quantity along a continuous line, including rational and irrational numbers.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction, such as √2 or π.