# Math Tutorial 1.2 - Number Sets, Positive and Negative Numbers and Number Lines

There are 2 lessons in this math tutorial covering Number Sets, Positive and Negative Numbers and Number Lines. The tutorial starts with an introduction to Number Sets, Positive and Negative Numbers and Number Lines and is then followed with a list of the separate lessons, the tutorial is designed to be read in order but you can skip to a specific lesson or return to recover a specific math lesson as required to build your math knowledge of Number Sets, Positive and Negative Numbers and Number Lines. you can access all the lessons from this tutorial below.

In this Math tutorial, you will learn:

• What is the definition of a set in general? What is a number set?
• What are natural numbers? What common feature do they share?
• What are whole numbers? Where do they differ from natural numbers?
• What are integers? Do they have a beginning/end?
• What are rational numbers? What is the name we more commonly refer to them as?
• What are irrational numbers? Do they have anything in common with rational numbers?
• How do we know whether a given number is rational or irrational?
• What are real numbers?
• What is a number line? In what direction do values increase in a number line?

## Introduction

How do you express the number of people living in your house? Your neighbourhood? Your country? Can you say: "There are four and a half persons living in my house?" Why?

How do you express the temperature 3 degrees below zero? What about the depth under the sea level? Why?

Do numbers have any origin? If yes, which number act as the origin?

In this tutorial, we will discuss number sets and how to express numbers in different situations. In addition, the meaning of negative numbers and how to express them in a number axis will be explained and illustrated with examples.

Please select a specific "Number Sets, Positive and Negative Numbers and Number Lines" lesson from the table below, review the video tutorial, print the revision notes or use the practice question to improve your knowledge of this math topic.

Arithmetic Learning Material
Tutorial IDMath Tutorial TitleTutorialVideo
Tutorial
Revision
Notes
Revision
Questions
1.2Number Sets, Positive and Negative Numbers and Number Lines
Lesson IDMath Lesson TitleLessonVideo
Lesson
1.2.1Number Sets
1.2.2Number Line

## Whats next?

Enjoy the "Number Sets, Positive and Negative Numbers and Number Lines" math tutorial? People who liked the "Number Sets, Positive and Negative Numbers and Number Lines" tutorial found the following resources useful:

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2. Arithmetic Video tutorial: Number Sets, Positive and Negative Numbers and Number Lines. Watch or listen to the Number Sets, Positive and Negative Numbers and Number Lines video tutorial, a useful way to help you revise when travelling to and from school/college
3. Arithmetic Revision Notes: Number Sets, Positive and Negative Numbers and Number Lines. Print the notes so you can revise the key points covered in the math tutorial for Number Sets, Positive and Negative Numbers and Number Lines
4. Arithmetic Practice Questions: Number Sets, Positive and Negative Numbers and Number Lines. Test and improve your knowledge of Number Sets, Positive and Negative Numbers and Number Lines with example questins and answers
5. Check your calculations for Arithmetic questions with our excellent Arithmetic calculators which contain full equations and calculations clearly displayed line by line. See the Arithmetic Calculators by iCalculator™ below.
6. Continuing learning arithmetic - read our next math tutorial: Operations with Numbers and Properties of Operations