Negative numbers are
numbers that are
less than zero.
We write a minus sign in
front of the digits to show
that they are negative.
Looking at number lines can help us
to understand negative numbers.
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
Positive Numbers (more than 0)Negative Numbers (less than 0)
Lower numbers are on
the left and higher
numbers are on the right.
5 is higher than -7
-1 is higher than -9
Is -8 higher or lower than 7?Is 14 higher or lower than -15?
We use negative
numbers in many
different ways.The temperature
is -7oC.It’s VERY cold!
My bank balance is -£100.I owe the bank 100 pounds!
The coordinates of the green circle are (-6, 4).
Level -3 is three floors below ground floor.
When you are solving negative number problems
with a calculator, look for the +/- key.
Let’s work out -5 + 7
using a calculator.
Press these buttons…
+/- 5 + 7 =
This tells the calculator to make the next number that
you enter negative.
The answer is 2.
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
Positive NumbersNegative Numbers
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
Positive NumbersNegative Numbers
Positive NumbersNegative Numbers
www.teachingpacks.co.ukImages: © ThinkStock©
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
www.teachingpacks.co.uk Images: © ThinkStock©
1 2
3 4
Write five negative numbers that are larger than:
-30
Write five negative numbers that are less than:
-5
Write five negative numbers that are larger than:
-10
Write five negative numbers that are less than:
-100
www.teachingpacks.co.uk Images: © ThinkStock©
9 10
11 12
What numbers are shown by the arrows on this number line?
What numbers are shown by the arrows on this number line?
Mark the following three numbers on the number line below.
Mark the following three numbers on the number line below.
-10 -5 0 -25 0
-9 -4 -2-10 -5 0
-80 -75 -9-90 0
www.teachingpacks.co.ukImages: © ThinkStock
©
A
Can you calculate the total of each row and column in
the boxes above?
1. -2 - -8 + -2 =
- + - +
-8 + 1 - -9 =
+ - + +
2 - -5 + 8 =
= = = =
+ + =
2. 5 - -8 + 0 =
- + - +
-8 + -7 - -9 =
+ - + +
3 - -7 + 5 =
= = = =
+ + =
3. 4 - -9 + 2 =
- + - +
-9 + -9 - -10 =
+ - + +
1 - -9 + -6 =
= = = =
+ + =
4. 6 - 3 + -4 =
- + - +
3 + 0 - -10 =
+ - + +
4 - -6 + 1 =
= = = =
+ + =
Thank you for looking atour preview resources.
We hope that they are useful to you.
Join us today to download thousands of resources fromour popular Teaching Packs!
Mark and Helen
www.teachingpacks.co.uk