MathsYears 7–9Ratio & Proportion
Direct proportion
Solve problems involving direct proportion including recipes and best value
What you'll learn
- 1
Imagine you buy 3 packs of crisps for £1.50. If you buy 6 packs, you pay double — £3.00. The cost goes up in the same way as the number of packs.
- 2
If 2 apples cost 80p, how much would 4 apples cost at the same rate?
- 3
Use the bar model to show: 3 pens cost £1.20. What does 1 pen cost?
- 4
Let's solve together: 5 cakes cost £4. How much for 8 cakes? 🎂
- 5
Now you try: 4 books cost £10. How much for 7 books? Use the bar model to help.
- 6
If 3 tickets cost £15, how much for 5 tickets?
- 7
A recipe uses 200g of flour for 4 people. How much flour for 7 people?
Practise Direct proportion with Whizlo
Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 11–14. Aligned to the UK National Curriculum.