← Back to Ratio ⚖️ Ratio, Proportion & Rates
Recipes
Learn recipes with a GCSE-style explanation, help guide, worked example, practice question and flashcards.
Ratio & ProportionGCSE25 XP completion3 flashcards
1. Explanation
Key idea
- Recipes is part of ratio & proportion and appears often in KS3–GCSE maths.
- Recipes are scaled by multiplying or dividing all ingredients by the same factor.
- Use the worked model, help guide, interactive question and flashcards to practise recipes until the steps feel automatic.
Real-life examples
- Shopping, sport, travel, science, design and everyday decisions all use this skill.
2. Visual
Recipes learning map
Understand the key idea → follow the help guide → practise a question → check your method → build speed with flashcards.
3. Help guide
How to tackle Recipes
- Learn the rule: Recipes are scaled by multiplying or dividing all ingredients by the same factor.
- Worked model: Find the multiplier or one-serving amount. Scale every ingredient by the same factor. Keep the units.
- Try the interactive question without looking at the answer first.
- Use the flashcards to test the rule, the method and a common check.
4. Worked examples
Step-by-step working
Scale a recipe
- Find the multiplier or one-serving amount.
- Scale every ingredient by the same factor.
- Keep the units.
Answer: 300 ml for 6 servings means 50 ml per serving
5. Interactive questions
Try it yourself
A recipe uses 200 g flour for 4 cakes. How much for 10 cakes?
6. Flashcards
Master quick recall
Flip each card, then choose whether you know it or need more practice.
0 mastered
FrontRule for Recipes
BackRecipes are scaled by multiplying or dividing all ingredients by the same factor.
FrontExample answer: A recipe uses 200 g flour for 4 cakes. How much for 10 cakes?
Back200 ÷ 4 = 50 g per cake. 50 × 10 = 500 g.
FrontCommon check for Recipes
BackCheck units/notation, compare with an estimate, and make sure the answer matches the question.
7. Finish
Complete this topic
When you have read the examples, tried the question and reviewed flashcards, claim your topic completion XP.