Keystones — Cornerstone
Five GCSE retrieval questions · 13 April 2026 · mathsvault.uk/keystones
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1. Number Directed number mixed operations
Calculate: -2 + 6 - 2
Answer: 2 -
2. Algebra Linear nth term
Find the nth term rule for: 14, 19, 24, 29, ...
Answer: 5n + 9 -
3. Geometry Area of a circle
Calculate the area of a circle with diameter 20cm
Answer: 314.16cm² -
4. Ratio Percentage change
A value increases from 116 to 179. What is the percentage change?
Answer: 54.3% -
5. Statistics Median
Find the median of: 11, 6, 15, 9, 16
Answer: 11