X Tables
Maths Adventures

Treehouse maths quest: money

A story-led junior maths adventure using ladders, plans and height measurements to budget coins, tickets and shop items.

Quick answer

By the end of this adventure, you'll be able to use coins and notes to pay for items, work out how much things cost, and plan your spending like a real money master!

Learning outcome

By the end of this page, you will be able to:
  • Count up different coins and notes to find the total amount
  • Work out how much change you should get from a shop
  • Compare prices to find the best deals
  • Plan your shopping budget using coins and notes

Why this matters

Money maths is super important because it helps you:
  • Understand how much things cost
  • Pay for your shopping
  • Save up for something special
  • Work out if you have enough coins to buy something
  • Be a smart shopper who gets the best deals

How it works

Think of money like a puzzle. Each coin or note is a piece that adds up to the total cost. You can:
  1. Count up all the coins you have
  2. Find out how much something costs
  3. Subtract the cost from what you have to find change
  4. Compare prices to save money

Examples you can see

Let's imagine you're building a treehouse with your friends. You need to plan your budget using coins and notes. Example 1: Planning your treehouse budget You want to buy:
  • Wood planks for £2.50
  • Nails for 50p
  • Paint for £1.20
  • Tools for £3.75
To find the total cost:
  • £2.50 + 50p + £1.20 + £3.75 = £8.95
Example 2: Paying for your treehouse items If you pay with a £10 note:
  • £10.00 - £8.95 = £1.05 change
Example 3: Comparing prices You're buying rope for your treehouse:
  • Shop A: 10m rope for £4.50
  • Shop B: 10m rope for £4.25
Shop B is cheaper by 25p!

Try it as a mini adventure

Treehouse Budget Challenge You're building a treehouse with your friends. You have £20 to spend. Here's what you need to buy:
  • Wood planks: £6.50
  • Paint (2 tins): £3.20
  • Tools: £4.75
  • Safe rope: £2.00
  • Seeds for garden: £1.50
Step 1: Add up all the prices to see if you have enough money. Step 2: Calculate how much money you'll have left over. Step 3: If you want to buy a snack for £1.25, can you afford it with your remaining money? Step 4: What if you want to buy a special tool that costs £3.00 instead of £4.75? How much more money would you need? Step 5: Draw your treehouse budget on paper and show how you spent your money.

Common mistakes

  • Mistake: Thinking £1.50 + 50p = £2.00
    Why it happens: Mixing up pounds and pence
    Fix: Remember 50p = £0.50, so £1.50 + £0.50 = £2.00
  • Mistake: Forgetting to count the £ sign when adding
    Why it happens: Getting confused about what's a pound and what's a penny
    Fix: Always say "pounds" and "pence" clearly when counting
  • Mistake: Not checking if you have enough money
    Why it happens: Rushing through the math
    Fix: Always double-check your total before going shopping
  • Mistake: Adding 10p + 5p = 15p instead of 15p
    Why it happens: Confusing addition with counting
    Fix: Use your fingers or coins to help you add up

Parent and carer guide

Here's how you can help your child learn money maths in 5-10 minutes:
  • Play "shop" at home using toys and coins
  • Ask your child to count up the coins in their piggy bank
  • Let them plan a small shopping trip with a budget
  • Ask questions like "If you have £5 and buy a £2 toy, how much change will you get?"
  • Use real-life situations like shopping or pocket money to practice
  • Don't worry if they make mistakes - they're learning!
  • Encourage them to explain their thinking to you
  • Use games and apps that involve money counting
  • Point out money in daily life: "Look, that ice cream costs £1.50"
  • Practice with different coin combinations to make the same amount

Practice questions

  1. How much is 3 x 50p?
  2. You have £1 and spend 75p. How much change do you get?
  3. What is 2 x £2.50?
  4. If a book costs £3.20 and you pay with £5, how much change do you get?
  5. How many 20p coins make £1?
Answers:
  1. £1.50
  2. 25p
  3. £5.00
  4. £1.80
  5. 5 coins

FAQ

What coins and notes do I need to know?

You should know all UK coins (1p, 2p, 5p, 10p, 20p, 50p, £1, £2) and notes (£5, £10, £20).

How do I add up money quickly?

Start with the largest amounts first. Add pounds, then pence. Use your fingers or draw coins to help you count.

What if I don't have enough money?

Always check your total before buying something. If you don't have enough, you can save up more money or choose a cheaper item.

How can I practice money maths at home?

Play shop with toys, count your pocket money, or plan a family shopping trip together. You can also use online games that involve money.

Why is money maths important?

Money maths helps you understand how much things cost, save up for things you want, and be a smart shopper who gets the best deals.