Keystones — Cornerstone
Five GCSE retrieval questions · 26 January 2026 · mathsvault.uk/keystones
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1. Number
What is the missing number: 96 + ? = 149
Answer: 53 -
2. Algebra
Collect like terms: 3x + 6y + 6x + 2y
Answer: 9x + 8y -
3. Geometry
Calculate the area of a circle with diameter 22cm
Answer: 380.13cm² -
4. Ratio
Simplify: 12:12:24
Answer: 1:1:2 -
5. Statistics
Find the range of: 22, 5, 9, 19, 15
Answer: 17