Keystones — Lintel
Five GCSE retrieval questions · 6 June 2026 · mathsvault.uk/keystones
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1. Number Mixed index laws
Simplify: y4 × (y2)2 ÷ y2
Answer: y6 -
2. Algebra Unknowns on both sides
Solve: 5x + 9 = 3x - 5
Answer: x = 7 -
3. Geometry Distance between two points
Calculate the distance between (7, 2) and (10, 6)
Answer: 5 -
4. Ratio Repeated percentage change
A value of 305 increases by 15% each year for 3 years. Final value?
Answer: 463.87 -
5. Statistics Median
Calculate the median of: 18, 37, 13, 18, 30, 13
Answer: 18