**Learning Objectives:**

- What is a negative number
- How to place a negative number on a number line
- Opposite numbers
- Comparing negative numbers

**[/box]** *Key words:**negative number, less then, greater then, opposite umbers, number line,*

**Imagine that you need £5 to buy a book but you only have £3 but your friend burrows you the other £2, so you owe him £2**

You can write this as: £3-£5= -£2

Negative numbers are all less then zero

Number line is really useful for understanding the negative numbers

**The further** **right** **you go the** **greater** **the numbers get.**

**-6** is less then **-2** because is further to the left on the number line

**-3** is more then **-5** because is further to the right on the number line

On this number line the smallest number is **-8** because it is the last number on the left side

**Opposite numbers**

Numbers that are the same but have different sign are **opposite numbers**

Example: **4** and **-4** **2** and **-2** **8** and **-8**

**If you add two opposite numbers it will always equal 0**

4+ (-4) =0

2+ (-2) =0

8+ (-8) =0

**Comparing numbers**

To compare numbers you need to use Inequality symbols**:**** **

-2 or -242 or 42-8 or -85 or 5-20 or -20-2 or -242 or 42-8 or -8