Keystones — Lintel
Five GCSE retrieval questions · 6 August 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 994 + 765
Answer: 1759 -
2. Algebra
Solve: 2x = 22
Answer: x = 11 -
3. Geometry
Adjacent = 29cm, hypotenuse = 35cm. Find the angle
Answer: 34° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
A bag has 5 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 5⁄11