Keystones — Cornerstone
Five GCSE retrieval questions · 6 January 2026 · mathsvault.uk/keystones
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1. Number Directed number mixed operations
Calculate: -7 + 2 - -9
Answer: 4 -
2. Algebra Linear nth term
Find the nth term rule for: 13, 16, 19, 22, ...
Answer: 3n + 10 -
3. Geometry Area of a circle
Find the area of a circle with radius 8cm
Answer: 201.06cm² -
4. Ratio Percentage change
A value increases from 174 to 242. What is the percentage change?
Answer: 39.1% -
5. Statistics Median
Calculate the median of: 14, 34, 32, 22, 13, 29
Answer: 25.5