Keystones — Cornerstone
Five GCSE retrieval questions · 3 June 2026 · mathsvault.uk/keystones
-
1. Number Directed number mixed operations
Calculate: -1 × 0 + 9
Answer: 9 -
2. Algebra Linear nth term
Find the nth term rule for: 12, 15, 18, 21, ...
Answer: 3n + 9 -
3. Geometry Area of a circle
Find the area of a circle with radius 7cm
Answer: 153.94cm² -
4. Ratio Percentage change
A price falls from £123.00 to £53.00. Calculate the percentage decrease
Answer: 56.9% -
5. Statistics Median
Find the median of: 19, 17, 14, 5, 6
Answer: 14