Understanding Subtraction

Subtraction is all about taking away. When you subtract, you start with a group of things, take some away, and count how many are left. It can also mean finding the difference between two groups.

The Minus Sign ($-$)

In math, we use special symbols to show what we are doing. For subtraction, we use the minus sign ($-$).

When you see a math problem like this: $5 - 2 = 3$

You read it as: "Five minus two equals three." This means if you have $5$ things and you take away $2$ of them, you have $3$ things left over.

Taking Away

Let's look at a real-life example! Imagine there are $5$ birds sitting on a fence. Suddenly, $2$ birds fly away. How many birds are still on the fence?

To find out, we write a subtraction sentence: $5 - 2 = 3$

There are $3$ birds left on the fence!

Finding the Difference

Subtraction also helps us find the difference between two numbers. Imagine you have $4$ toy cars, and your friend has $1$ toy car. How many more cars do you have?

We can subtract to find the answer: $4 - 1 = 3$

You have $3$ more cars than your friend.

The Opposite of Addition

Did you know subtraction is just the opposite of addition?

• Addition is putting things together: $3 + 2 = 5$
• Subtraction is taking things apart: $5 - 2 = 3$

If you know how to add numbers together, you can use that knowledge to help you subtract!