Keystones — Lintel
Five GCSE retrieval questions · 24 September 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 994 + 866
Answer: 1860 -
2. Algebra
Expand: 4(4x + 2)
Answer: 16x + 8 -
3. Geometry
Opposite = 13cm, adjacent = 18cm. Calculate the angle
Answer: 35.8° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
A spinner has 6 red, 4 blue and 2 green sections. Probability of landing on red?
Answer: 1⁄2