Keystones — Cornerstone
Five GCSE retrieval questions · 4 June 2026 · mathsvault.uk/keystones
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1. Number Directed number mixed operations
Calculate: 2 × -5 + -4
Answer: -14 -
2. Algebra Linear nth term
Find the nth term rule for: 12, 16, 20, 24, ...
Answer: 4n + 8 -
3. Geometry Area of a circle
Find the area of a circle with radius 6cm
Answer: 113.cm² -
4. Ratio Percentage change
A value increases from 193 to 222. What is the percentage change?
Answer: 15% -
5. Statistics Median
Calculate the median of: 23, 40, 31, 39, 12, 23
Answer: 27