Keystones — Cornerstone
Five GCSE retrieval questions · 16 April 2026 · mathsvault.uk/keystones
-
1. Number Directed number mixed operations
Calculate: -5 + -5 - 0
Answer: -10 -
2. Algebra Linear nth term
Find the nth term: 20, 17, 14, 11, ...
Answer: 23 - 3n -
3. Geometry Area of a circle
Calculate the area of a circle with diameter 11cm
Answer: 95.03cm² -
4. Ratio Percentage change
A price falls from £339.00 to £128.00. Calculate the percentage decrease
Answer: 62.2% -
5. Statistics Median
Find the median of: 6, 12, 12, 19, 12
Answer: 12