Keystones — Capstone
Five GCSE retrieval questions · 2 June 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 150. What are the numbers?
Answer: 49, 50, and 51 -
2. Algebra
Factorise fully: 30x² + 20x
Answer: 5x(6x + 4) -
3. Geometry
Adjacent = 30cm, hypotenuse = 35cm. Find the angle
Answer: 31° -
4. Ratio
Calculate 13.6% of 843
Answer: 114.65 -
5. Statistics
A spinner has 2 red, 6 blue and 3 green sections. Probability of landing on red?
Answer: 2⁄11