Keystones — Lintel
Five GCSE retrieval questions · 21 July 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 995 + 624
Answer: 1619 -
2. Algebra
What is the next term? 7, 14, 28, 56, ...
Answer: 112 -
3. Geometry
Adjacent = 22cm, hypotenuse = 30cm. Find the angle
Answer: 42.8° -
4. Ratio
Simplify: 20:24:16
Answer: 5:6:4 -
5. Statistics
Calculate the mean of: 11, 23, 12, 34, 34, 35, 41
Answer: 27.1