Keystones — Lintel
Five GCSE retrieval questions · 11 May 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 2⁄6 + 1⁄2 + 1⁄2
Answer: 4⁄3 -
2. Algebra
For y = x³ + 5, calculate y when x = 3
Answer: y = 32 -
3. Geometry
Opposite = 19cm, adjacent = 12cm. Calculate the angle
Answer: 57.7° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
A spinner has 4 red, 6 blue and 5 green sections. Probability of landing on red?
Answer: 4⁄15