Keystones — Capstone
Five GCSE retrieval questions · 1 April 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 108. What are the numbers?
Answer: 35, 36, and 37 -
2. Algebra
Factorise fully: 28x² + 20x
Answer: 4x(7x + 5) -
3. Geometry
Adjacent = 15cm, hypotenuse = 24cm. Find the angle
Answer: 51.3° -
4. Ratio
Calculate 27.9% of 229
Answer: 63.89 -
5. Statistics
A spinner has 4 red, 5 blue and 2 green sections. Probability of landing on red?
Answer: 4⁄11