Money misconceptions
Fix place-value and decimal errors in pounds and pence or dollars and cents.
Quick answer
Money misconceptions often happen when children confuse the value of pounds and pence or mix up the order of numbers when writing amounts. The key is understanding that 100 pence = 1 pound, and that pence always come after pounds in written amounts like £2.50.
Learning outcome
By the end of this page, you will understand how to correctly read, write, and use money in pounds and pence, and you’ll know how to avoid common mistakes when working with money.
- You can read money amounts like £3.75 correctly
- You know that 100 pence = 1 pound
- You can compare money amounts to see which is more or less
- You can add and subtract money amounts using the correct place value
Why this matters
Understanding money is one of the most practical skills you’ll use every day. Whether you’re buying a snack, saving up for a toy, or sharing pocket money with a friend, money skills help you make smart choices. When you get confused with money, it can lead to mistakes in real-life situations like shopping or splitting bills. Learning how to use money correctly helps you feel confident when you go to the shop or count your savings.
How it works
Money in the UK is split into pounds (£) and pence (p). The key is to remember that:
- 1 pound = 100 pence
- When writing money, pounds come first, then pence
- Always write pence with two digits after the decimal point
For example, £2.50 means 2 pounds and 50 pence. The 50 is the pence part, and it always comes after the decimal point.
Examples you can see
Here are some ways to think about money amounts:
| Amount | Written as | What it means |
|---|---|---|
| £1.25 | One pound and twenty-five pence | 100 pence + 25 pence = 125 pence |
| £3.00 | Three pounds and zero pence | 300 pence |
| £0.99 | Zero pounds and ninety-nine pence | 99 pence |
Try this: If you have 3 coins that are 50p, 20p, and 10p, how much money do you have?
50p + 20p + 10p = 80p
So, you have 80 pence, or £0.80.
Imagine you are at a shop and want to buy a toy that costs £1.50. You have a £1 coin and a 50p coin. You can pay with these coins because:
- £1 coin = 100 pence
- 50p coin = 50 pence
- 100 pence + 50 pence = 150 pence = £1.50
Try it as a mini adventure
Adventure: The Money Shop
You are the shopkeeper at a small toy shop. You have these items:
- Toy car: £1.25
- Ball: £0.80
- Block set: £2.00
- Sticker book: £0.50
Your job is to:
- Write the price of each item in words
- Find the total cost of buying one ball and one sticker book
- Decide how much change you would give if someone paid with a £2 coin
Answer:
- Ball = One pound and eighty pence
- Sticker book = Fifty pence
- Total = 80p + 50p = 130p = £1.30
- Change from £2 coin = £2.00 - £1.30 = £0.70
Common mistakes
- Mistake: Writing £1.5 as 1 pound and 5 pence instead of 1 pound and 50 pence
Why it happens: Children often think the second digit after the decimal point is the number of pence, but it's actually two digits. 5p = 0.05, not 0.5
Fix: Always write pence with two digits. £1.50 is correct, not £1.5 - Mistake: Confusing 100 pence with 10 pence
Why it happens: Children may not understand that 100 pence = 1 pound
Fix: Use real coins to show that 100 one-pence coins = 1 pound coin - Mistake: Adding pounds and pence without lining up correctly
Why it happens: Children may forget that pence must be added to pence
Fix: Always add pounds to pounds and pence to pence - Mistake: Writing £2.5 as “two pounds and five pence”
Why it happens: Mistakenly thinking that 5 is 5 pence
Fix: Always remember that £2.50 = 2 pounds and 50 pence
Parent and carer guide
Helping your child with money is a great way to build real-life maths skills. Here’s how you can support them:
- Use real coins and notes: Let your child handle real money and count it. This helps them see that 100 pence = 1 pound.
- Play a shopping game: Set up a pretend shop with items priced in pounds and pence. Have your child buy things and calculate change.
- Encourage writing money amounts: Ask them to write amounts like £3.75 in words and explain what each digit means.
- Look for real-life money examples: When shopping, ask your child to compare prices or estimate totals.
- Don’t worry about perfection: Mistakes are part of learning. Encourage your child to try and correct their own errors.
Practice questions
- Write £1.75 in words.
- How much is 200 pence in pounds?
- What is the total of £0.60 and £0.40?
- Which is more: £1.25 or £1.50?
- How much change would you get from £2 if you spent £1.30?
Answers:
- One pound and seventy-five pence
- £2
- £1.00
- £1.50 is more
- £0.70
FAQ
Why do we write pence with two digits?
We always write pence with two digits to keep things clear. For example, 5 pence is written as 05p, but we usually just write 5p. However, when writing money, we always show two digits for pence to match the decimal point system.
Can I write £2.5 instead of £2.50?
Technically, yes, but it's better to write £2.50. This makes it clear that the 5 is in the tenths column, not the units column. It also helps with future maths like decimals and percentages.
What if I have 120 pence?
120 pence = £1.20. This is because 100 pence = 1 pound, so 20 pence are left over.
How can I practice money skills at home?
Play games like “shop” with your child, use a piggy bank to save money, or count out coins for small purchases. The more you practice, the more confident you’ll become!
Is it harder to add money with pence than with whole pounds?
It’s not harder once you get used to it. Just remember to always add pounds to pounds and pence to pence. If you get 100 pence or more, you can convert it to pounds. For example, 50p + 70p = 120p = £1.20.