Keystones — Capstone
Five GCSE retrieval questions · 14 August 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 111. What are the numbers?
Answer: 36, 37, and 38 -
2. Algebra
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
Adjacent = 20cm, hypotenuse = 35cm. Find the angle
Answer: 55.2° -
4. Ratio
Calculate 20.4% of 603
Answer: 123.01 -
5. Statistics
A spinner has 2 red, 2 blue and 4 green sections. Probability of landing on red?
Answer: 1⁄4