Keystones — Cornerstone
Five GCSE retrieval questions · 23 December 2025 · mathsvault.uk/keystones
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1. Number
What is the missing number: 50 + ? = 108
Answer: 58 -
2. Algebra
Find the next term: 7, 10, 13, 16, ...
Answer: 19 -
3. Geometry
Find the area of a circle with radius 5cm
Answer: 78.54cm² -
4. Ratio
Simplify the ratio 30:40
Answer: 3:4 -
5. Statistics
Calculate the range of: 33, 95, 66, 50, 99, 42
Answer: 66