Keystones — Lintel
Five GCSE retrieval questions · 12 April 2026 · mathsvault.uk/keystones
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1. Number
What is ∛27?
Answer: 3 -
2. Algebra
Solve: x⁄5 = 4
Answer: x = 20 -
3. Geometry
Adjacent = 13cm, hypotenuse = 31cm. Find the angle
Answer: 65.2° -
4. Ratio
Find 76% of 75
Answer: 57 -
5. Statistics
A spinner has 3 red, 3 blue and 6 green sections. Probability of landing on red?
Answer: 1⁄4