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addition

Addition on a number line

Model jumps forward to solve addition problems.

Quick answer

Addition on a number line means jumping forward on a line to add numbers together. You start at one number and make jumps to reach the answer.

Learning outcome

By the end of this page, you will be able to use a number line to add two numbers by making jumps forward. Success signs:
  • You can show addition by jumping forward on a number line
  • You can solve simple addition problems using a number line
  • You can explain how to start at one number and jump forward
  • You can use a number line to add numbers up to 20

Why this matters

Number lines help you see addition like a journey. When you add numbers, you are moving forward, just like walking along a path. This helps you understand what addition really means, not just memorise facts. It's useful for:
  • Learning how numbers grow
  • Checking if your answer makes sense
  • Building strong maths skills for bigger problems
  • Playing games like "Jump to the Answer"

How it works

Addition on a number line is simple:
  1. Start at the first number on the line
  2. Jump forward by the second number
  3. Land on the answer
This is like walking forward on a path. If you start at 3 and jump 4 steps, you land on 7.

Examples you can see

Let's look at some examples using a number line. Example 1: 3 + 2
  1. Start at 3
  2. Jump forward 2 steps
  3. You land on 5
Example 2: 6 + 3
  1. Start at 6
  2. Jump forward 3 steps
  3. You land on 9
Example 3: 10 + 5
  1. Start at 10
  2. Jump forward 5 steps
  3. You land on 15
You can draw a number line to help: 
0  1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20
                ↑
                3
From 3, jump 2 steps forward to land on 5.

Try it as a mini adventure

The Great Number Line Quest You are a brave explorer on a treasure hunt! You must find the treasure by solving addition problems on a number line.
  1. Start at 4
  2. Jump forward 3 steps
  3. Where do you land?
Answer: You land on 7. Now try this challenge:
  1. Start at 8
  2. Jump forward 4 steps
  3. Where do you land?
Answer: You land on 12. Adventure Tip: Draw your own number line and practice jumping forward. You can use your fingers or small toys to make the jumps!

Common mistakes

  • Mistake: Jumping backwards instead of forwards
    Why it happens: Confusing addition with subtraction
    Fix: Remember, addition means going forward, not back!
  • Mistake: Starting at the wrong number
    Why it happens: Reading the problem wrong
    Fix: Read the numbers carefully and start at the first number
  • Mistake: Counting the starting number as a jump
    Why it happens: Not understanding that the first number is your start point
    Fix: The first number is where you start, then count the jumps

Parent and carer guide

Here's how you can help your child learn addition on a number line:
  • Draw a number line together on paper or the floor with tape
  • Practice jumping as a family game. Say "Start at 5, jump 3 steps!"
  • Use everyday situations like "You have 3 apples, I give you 2 more. How many now?"
  • Encourage drawing their own number lines for problems
  • Don't worry if they make mistakes. They're learning!
Five-minute practice tip: Draw a number line from 0 to 10. Ask your child to start at 4 and jump 5 steps. They should land on 9.

Practice questions

  1. Start at 2, jump 3 steps. What number do you land on?
  2. Start at 7, jump 2 steps. What number do you land on?
  3. Start at 5, jump 4 steps. What number do you land on?
  4. Start at 9, jump 3 steps. What number do you land on?
  5. Start at 6, jump 5 steps. What number do you land on?
Answers:
  1. 5
  2. 9
  3. 9
  4. 12
  5. 11

FAQ

What is a number line?

A number line is a straight line with numbers in order. It helps you see how numbers grow and helps with addition and subtraction.

Why do we use a number line for addition?

It helps you see addition like a journey. You start at one number and move forward to find the answer.

Can I use a number line for big numbers?

Yes! You can use a number line for any numbers. Even 100 or 1000. Just make bigger jumps.

How do I know if I'm jumping the right way?

Always jump forward for addition. If you jump backwards, you're doing subtraction!

Can I draw my own number line?

Yes! Draw a line and write numbers from 0 to 20. Then practice jumping forward.