Keystones — Cornerstone
Five GCSE retrieval questions · 13 September 2026 · mathsvault.uk/keystones
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1. Number Directed number mixed operations
Calculate: -7 × 3 + -3
Answer: -24 -
2. Algebra Linear nth term
Find the nth term: 37, 34, 31, 28, ...
Answer: 40 - 3n -
3. Geometry Area of a circle
Find the area of a circle with radius 5cm
Answer: 78.54cm² -
4. Ratio Percentage change
A value increases from 185 to 217. What is the percentage change?
Answer: 17.3% -
5. Statistics Median
Find the median of: 7, 14, 10, 10, 18
Answer: 10