Keystones — Cornerstone
Five GCSE retrieval questions · 22 July 2026 · mathsvault.uk/keystones
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1. Number Directed number mixed operations
Calculate: 4 × -3 + 2
Answer: -10 -
2. Algebra Linear nth term
Find the nth term rule for: 12, 14, 16, 18, ...
Answer: 2n + 10 -
3. Geometry Area of a circle
Calculate the area of a circle with diameter 14cm
Answer: 153.94cm² -
4. Ratio Percentage change
A value increases from 173 to 185. What is the percentage change?
Answer: 6.9% -
5. Statistics Median
Find the median of: 6, 17, 8, 9, 10
Answer: 9