Keystones — Lintel
Five GCSE retrieval questions · 12 August 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 999 + 633
Answer: 1632 -
2. Algebra
Solve: x⁄5 = 5
Answer: x = 25 -
3. Geometry
Calculate the area of a circle with diameter 17cm
Answer: 226.98cm² -
4. Ratio
Calculate 28.5% of 534
Answer: 152.19 -
5. Statistics
A spinner has 6 red, 4 blue and 2 green sections. Probability of landing on red?
Answer: 1⁄2