Keystones — Cornerstone
Five GCSE retrieval questions · 1 June 2026 · mathsvault.uk/keystones
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1. Number Directed number mixed operations
Calculate: -4 × -2 + -9
Answer: -1 -
2. Algebra Linear nth term
Find the nth term: 21, 19, 17, 15, ...
Answer: 23 - 2n -
3. Geometry Area of a circle
Find the area of a circle with radius 5cm
Answer: 78.54cm² -
4. Ratio Percentage change
A price falls from £147.00 to £116.00. Calculate the percentage decrease
Answer: 21.1% -
5. Statistics Median
Calculate the median of: 35, 33, 33, 37, 36, 13
Answer: 34