Keystones — Cornerstone
Five GCSE retrieval questions · 12 September 2026 · mathsvault.uk/keystones
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1. Number Directed number mixed operations
Calculate: 4 + 0 - 7
Answer: -3 -
2. Algebra Linear nth term
Find the nth term rule for: 10, 16, 22, 28, ...
Answer: 6n + 4 -
3. Geometry Area of a circle
Calculate the area of a circle with diameter 10cm
Answer: 78.54cm² -
4. Ratio Percentage change
A value increases from 196 to 279. What is the percentage change?
Answer: 42.3% -
5. Statistics Median
Calculate the median of: 19, 25, 26, 22, 20, 25
Answer: 23.5