Keystones — Lintel
Five GCSE retrieval questions · 3 June 2026 · mathsvault.uk/keystones
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1. Number Mixed index laws
Simplify: y4 × (y4)3 ÷ y2
Answer: y14 -
2. Algebra Unknowns on both sides
Solve: 6x - 7 = 3x + 5
Answer: x = 4 -
3. Geometry Distance between two points
Calculate the distance between (8, 5) and (11, 9)
Answer: 5 -
4. Ratio Repeated percentage change
A car worth £19,125.00 depreciates by 21% each year for 3 years. What is it worth after 3 years?
Answer: £9,429.37 -
5. Statistics Median
Calculate the median of: 30, 34, 38, 40, 24, 36
Answer: 35