Keystones — Capstone
Five GCSE retrieval questions · 24 June 2026 · mathsvault.uk/keystones
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1. Number Index law — powers of powers
Simplify: ((a4)3)3
Answer: a36 -
2. Algebra Quadratic nth term
Determine the nth term: 10, 19, 34, 55, ...
Answer: 3n² + 7 -
3. Geometry Equation of a circle
State the equation of a circle with centre (3, 3) and radius 6
Answer: (x - 3)² + (y - 3)² = 36 -
4. Ratio Changing a ratio
In ratio 7:3, if the second quantity is 47, what is the first?
Answer: 109.7 -
5. Statistics Range
Find the range of: -15, -4, -15, 45, -3
Answer: 60