Tutorial
In Course: GCSE Mathematics: Lower Tier

GCSE Maths: Calculating with Negative Numbers

Master the four operations (add, subtract, multiply, divide) with negative integers, both with and without a calculator.
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Deck Contents

20 Cards
Lesson#1
Welcome to calculating with negative numbers. In this deck, we'll master the four basic operations: adding, subtracting, multiplying, and dividing. We'll learn the simple rules that make these calculations straightforward, so you can solve any problem involving negatives with confidence.
Lesson#2
Let's start with addition. The key rule is simple: adding a negative number is exactly the same as subtracting. For example, if the temperature is 10 degrees and it falls by 3 degrees, it becomes 7 degrees. So, 10 plus negative 3 is the same as 10 minus 3.
Quiz#3
What single operation is the same as adding a negative number?

subtraction

Quiz#4
Using the rule that adding a negative is like subtracting, what is 8 plus negative 3?

5

Lesson#5
Now for subtraction. This is where a very important rule comes in. Subtracting a negative number is the same as adding. Think of it as taking away a debt. If someone takes away your 5 pound debt, you are 5 pounds richer. So, 10 minus negative 5 is the same as 10 plus 5.
Quiz#6
When you subtract a negative number, what single operation is this equivalent to?

addition

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