Keystones — Capstone
Five GCSE retrieval questions · 30 September 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 147. What are the numbers?
Answer: 48, 49, and 50 -
2. Algebra
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
Adjacent = 29cm, hypotenuse = 45cm. Find the angle
Answer: 49.9° -
4. Ratio
Calculate 12.3% of 483
Answer: 59.41 -
5. Statistics
A spinner has 3 red, 3 blue and 4 green sections. Probability of landing on red?
Answer: 3⁄10