Common maths mistakes at age 6

Quick answer

Children aged 6 are still learning basic number concepts, and common maths mistakes at this age often involve confusion with counting, number order, and simple addition or subtraction. These errors are normal and can be fixed with clear explanations, hands-on practice, and lots of visual models.

Learning outcome

By the end of this page, you will understand the most common maths mistakes children make at age 6 and how to fix them using simple tools, real-life examples, and fun practice games.

• You can explain why counting backwards or skipping numbers is a common mistake
• You can use objects or drawings to solve simple addition and subtraction problems
• You can spot when a child is confused about the meaning of "more" or "less"
• You can suggest fun ways to practice maths at home

Why this matters

At age 6, children are building strong foundations for future maths learning. If they misunderstand basic ideas like counting or what numbers mean, it can make more advanced topics harder later. Understanding these common mistakes helps parents and teachers give the right support early on. It also helps children feel confident and not scared of making mistakes.

How it works

Children aged 6 are still learning how numbers work, so they often mix up counting, addition, and subtraction. They might count objects twice or forget to count the first object. They may also confuse "more" and "less" or think that bigger numbers always mean more items. Using physical objects, drawing pictures, and talking through problems helps make these ideas clear.

Examples you can see

Let's look at some real-life examples of common maths mistakes at age 6.

Example 1: Counting backwards

Imagine a child is counting backwards from 10 to 1. They might say: 10, 9, 8, 7, 6, 5, 4, 3, 2, 1. But sometimes they say: 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0. That’s a mistake because there is no number "0" when counting backwards from 10.

Example 2: Adding the same number

Suppose a child is asked: "If you have 3 apples and get 3 more, how many apples do you have?" They might say: "3 plus 3 equals 6" but then say "3 plus 3 equals 3" because they are confused about the meaning of "plus".

Example 3: Confusing more and less

Two children have different numbers of toys. One has 5 toys and the other has 3. A child might say: "5 is less than 3" instead of "5 is more than 3". This happens because they are not sure which number is bigger or smaller.

Example 4: Counting objects twice

When asked to count 6 crayons, a child might say: "1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6" — counting the same crayons twice. This shows they are not keeping track of which crayons they have counted.

Try it as a mini adventure

Let’s go on a maths adventure in the garden!

Adventure: The Garden Counting Challenge

You and your friend are helping to plant flowers in the garden. You need to count how many flowers you plant and how many you have left to plant.

1. First, you plant 4 flowers. You plant 3 more. How many flowers did you plant in total? (Answer: 7)
2. You have 10 flower seeds. You plant 5 of them. How many seeds do you have left? (Answer: 5)
3. You plant 6 flowers in a row. You want to plant 3 more. How many flowers will there be in total? (Answer: 9)
4. You start with 8 flowers. You give 2 to your sister. How many flowers do you have now? (Answer: 6)
5. You count 5 flowers in one row and 5 in another. How many flowers are there altogether? (Answer: 10)

Common mistakes

• Mistake: Counting objects twice or forgetting to count the first object.

  Why it happens: The child is not keeping track of which objects they’ve counted.

  Fix: Use a finger or a small object to move each counted item, so they know it's been counted.

• Mistake: Thinking that "more" means smaller numbers.

  Why it happens: Children often confuse the words "more" and "less" because they are not yet sure how numbers relate to quantities.

  Fix: Use real-life examples like "more toys" or "more cookies" and compare them with physical objects.

• Mistake: Confusing addition and subtraction.

  Why it happens: The child may not understand that adding means "more" and subtracting means "less".

  Fix: Use physical actions like adding or taking away items to show what each operation means.

• Mistake: Counting backwards from 10 to 0.

  Why it happens: The child doesn’t understand that 0 is not part of the counting sequence backwards.

  Fix: Practice counting backwards from 10 to 1 only, and use visual aids like a number line.

Parent and carer guide

Here are some simple ways you can help your child at home:

• Use hands-on activities: Count real objects like buttons, toys, or fruits. This helps children connect numbers to real life.
• Practice counting backwards: Say numbers from 10 to 1, or even 20 to 1. This helps with number order.
• Ask simple questions: “How many apples are there?” or “If you have 3 crayons and get 2 more, how many do you have?”
• Use visual aids: Draw pictures or use blocks to show addition and subtraction.
• Don’t worry if they make mistakes: Mistakes are part of learning. Help them correct the mistake gently and explain why it happened.

Practice questions

1. Count backwards from 10 to 1. What number do you say last? Answer: 1
2. You have 5 sweets. You eat 2. How many sweets do you have left? Answer: 3
3. There are 4 birds on a tree. 3 more birds fly to the tree. How many birds are there now? Answer: 7
4. You have 8 stickers. You give 4 to your friend. How many stickers do you have now? Answer: 4
5. You have 3 books. You get 5 more. How many books do you have altogether? Answer: 8

FAQ

Why do children make maths mistakes at age 6?

At age 6, children are still learning how numbers work. They may not fully understand the meaning of "more", "less", or "add". They are also still learning to count correctly and keep track of objects.

Can children learn from their mistakes?

Yes! Making mistakes is a normal part of learning. When children make a mistake, it gives us a chance to explain the concept again in a way that makes sense to them.

How can I help my child with maths at home?

You can help by counting with your child, using objects like toys or food to show addition and subtraction, and asking simple questions about numbers in everyday life.

Is it normal for a 6-year-old to count backwards from 10 to 0?

No, it’s not normal. A 6-year-old should count backwards from 10 to 1 only. Counting to 0 is usually a mistake because 0 is not part of the counting sequence backwards.

What should I do if my child keeps making the same mistake?

Repeat the activity with different objects or ways of counting. Use games, songs, or drawing to make it fun. If the mistake keeps happening, talk to your child’s teacher for more support.