Keystones — Cornerstone
Five GCSE retrieval questions · 24 July 2026 · mathsvault.uk/keystones
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1. Number Directed number mixed operations
Calculate: 4 + -10 - 2
Answer: -8 -
2. Algebra Linear nth term
Find the nth term: 22, 20, 18, 16, ...
Answer: 24 - 2n -
3. Geometry Area of a circle
Find the area of a circle with radius 4cm
Answer: 50.27cm² -
4. Ratio Percentage change
A price falls from £262.00 to £202.00. Calculate the percentage decrease
Answer: 22.9% -
5. Statistics Median
Find the median of: 6, 11, 7, 13, 15
Answer: 11