Keystones — Lintel
Five GCSE retrieval questions · 18 July 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 280 + 402
Answer: 280 + 402 = 682 -
2. Algebra
What is the next term? 3, 12, 48, 192, ...
Answer: 768 -
3. Geometry
Opposite = 14cm, adjacent = 17cm. Calculate the angle
Answer: 39.5° -
4. Ratio
Simplify: 4:6:6
Answer: 2:3:3 -
5. Statistics
A spinner has 3 red, 5 blue and 6 green sections. Probability of landing on red?
Answer: 3⁄14