Keystones — Lintel
Five GCSE retrieval questions · 6 July 2026 · mathsvault.uk/keystones
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1. Number
What is the missing number: 96 + ? = 116
Answer: 20 -
2. Algebra
What is the next term? 6, 24, 96, 384, ...
Answer: 1536 -
3. Geometry
Adjacent = 24cm, hypotenuse = 36cm. Find the angle
Answer: 48.2° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
Calculate the mean of: 49, 43, 46, 26, 38, 12, 28
Answer: 34.6