Keystones — Cornerstone
Five GCSE retrieval questions · 20 July 2026 · mathsvault.uk/keystones
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1. Number Directed number mixed operations
Calculate: -6 × 2 + 5
Answer: -7 -
2. Algebra Linear nth term
Find the nth term: 34, 30, 26, 22, ...
Answer: 38 - 4n -
3. Geometry Area of a circle
Calculate the area of a circle with diameter 12cm
Answer: 113.cm² -
4. Ratio Percentage change
A value increases from 196 to 259. What is the percentage change?
Answer: 32.1% -
5. Statistics Median
Calculate the median of: 32, 14, 15, 38, 36, 14
Answer: 23.5