Keystones — Lintel
Five GCSE retrieval questions · 1 June 2026 · mathsvault.uk/keystones
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1. Number Mixed index laws
Simplify: y3 × (y3)4 ÷ y3
Answer: y12 -
2. Algebra Unknowns on both sides
Solve: 8x + 5 = 5x - 6
Answer: x = 3.7 -
3. Geometry Distance between two points
Calculate the distance between (2, 7) and (5, 11)
Answer: 5 -
4. Ratio Repeated percentage change
A car worth £10,773.00 depreciates by 18% each year for 5 years. What is it worth after 5 years?
Answer: £3,993.98 -
5. Statistics Median
Find the median of: 45, 67, 64, 76, 48, 72, 24, 80, 33, 33
Answer: 64