X Tables
Number Sense

Counting on from a number

Start from the larger number instead of counting everything again.

Quick answer

Counting on means starting from a number you already know and counting up from there, instead of starting from one and counting everything again.

Learning outcome

By the end of this page, you will know how to count on from any number to solve simple addition problems. Success signs:
  • You can start from a number and count up to find the answer
  • You can use this strategy to add small numbers
  • You understand that counting on is faster than counting everything
  • You can explain why counting on works

Why this matters

Counting on is a helpful way to add numbers quickly and easily. It helps you think faster and makes maths feel less tiring. You can use this skill when you're sharing toys, counting your pocket money, or even when you're playing a game. It’s a smart way to solve addition problems without needing to start from one every time.

How it works

Let’s imagine you have 5 apples and someone gives you 3 more. Instead of starting from one and counting all 8 apples, you start from 5 and count on: 6, 7, 8. That’s counting on from 5 by 3. Here’s how to do it:
  1. Look at the first number in your addition problem
  2. Start counting from that number
  3. Count on the number of steps shown by the second number
  4. Stop when you’ve counted the right number of steps

Examples you can see

Let’s try some examples with counting on. Example 1: You have 4 toy cars. Your friend gives you 2 more. How many cars do you have now? Start at 4 and count on 2: 5, 6. So, 4 + 2 = 6. Example 2: There are 7 birds on a tree. 3 more birds fly in. How many birds are there now? Start at 7 and count on 3: 8, 9, 10. So, 7 + 3 = 10. Example 3: You have 9 stickers. You get 4 more. How many stickers do you have? Start at 9 and count on 4: 10, 11, 12, 13. So, 9 + 4 = 13. Example 4: There are 3 children in a line. 5 more children join. How many children are there? Start at 3 and count on 5: 4, 5, 6, 7, 8. So, 3 + 5 = 8. These examples use real-life situations that you can imagine or act out with your hands or toys.

Try it as a mini adventure

Adventure: The Treasure Hunt You are going on a treasure hunt with your friends. You start with 5 coins in your pocket. Then you find 4 more coins on the ground. How many coins do you have now? To solve this, you start at 5 and count on 4:
  • Step 1: 5 coins
  • Step 2: 6 coins
  • Step 3: 7 coins
  • Step 4: 8 coins
  • Step 5: 9 coins
You now have 9 coins in total. Try this with your toys or fingers:
  • Count on from 3 when adding 6
  • Count on from 7 when adding 2
  • Count on from 10 when adding 3

Common mistakes

  • Mistake: Starting from 1 instead of the first number.
    Why it happens: It’s easy to forget that you already know the first number.
    Fix: Always look at the first number and start counting from there.
  • Mistake: Counting the first number again.
    Why it happens: Confusion between counting on and counting all.
    Fix: Think of it as “adding” not “counting everything”.
  • Mistake: Forgetting to count the correct number of steps.
    Why it happens: Not paying attention to the second number.
    Fix: Say the second number out loud and count that many steps.

Parent and carer guide

Parents and carers can help by:
  • Practising counting on with everyday situations like sharing snacks or counting toys
  • Using fingers or objects to show how counting on works
  • Repeating the steps: “Start at 5, count on 3: 6, 7, 8”
  • Encouraging children to say the numbers out loud
  • Noticing when children start from one instead of the first number
It’s okay if children make mistakes. They’re learning and growing! Keep the practice fun and short.

Practice questions

  1. Start at 6 and count on 2. What is the answer?
  2. You have 8 balloons. Someone gives you 3 more. How many balloons do you have?
  3. Start at 4 and count on 5. What is the answer?
  4. You have 10 pencils. You get 2 more. How many pencils do you have?
  5. Start at 7 and count on 4. What is the answer?
Answers:
  1. 8
  2. 11
  3. 9
  4. 12
  5. 11

FAQ

What is counting on?

Counting on is when you start from a number and count up to find the answer to an addition problem.

Why is counting on better than counting everything?

Counting on saves time and helps you solve problems faster because you don’t have to start from one.

Can I use counting on with any numbers?

Yes! You can use counting on with any numbers, but it works best with small numbers.

How can I practice counting on at home?

You can use toys, fingers, or even draw pictures to help you count on.

What if I forget to count on the right number of steps?

Try saying the second number out loud and counting that many steps carefully.