Keystones — Lintel
Five GCSE retrieval questions · 6 February 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 994 + 879
Answer: 1873 -
2. Algebra
Expand: 4(5x + 7)
Answer: 20x + 28 -
3. Geometry
Opposite = 13cm, adjacent = 9cm. Calculate the angle
Answer: 55.3° -
4. Ratio
Calculate 49.9% of 978
Answer: 488.02 -
5. Statistics
A spinner has 6 red, 3 blue and 3 green sections. Probability of landing on red?
Answer: 1⁄2