Unit 4 - The 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

Are all whole numbers rational numbers?

Back

True. All whole numbers can be expressed as a fraction with a denominator of 1.

Front

What type of number is a repeating decimal?

Back

A repeating decimal is a rational number.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; its decimal representation goes on forever without repeating.

Front

Which of the following is an example of an irrational number?

Back

The square root of 2 (approximately 1.41421356...) is an example of an irrational number.

Front

What is a natural number?

Back

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

Front

What is the difference between whole numbers and integers?

Back

Whole numbers include all natural numbers and zero, while integers include all whole numbers and their negative counterparts.

Front

List the classifications of the number 41.013.

Back

41.013 is a rational number.

Front

What number is both a natural number and a whole number?

Back

3 is both a natural number and a whole number.

Front

What is the classification of the number -4?

Back

-4 is an integer but not a natural or whole number.