Keystones — Lintel
Five GCSE retrieval questions · 11 August 2026 · mathsvault.uk/keystones
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1. Number
Find the total of 159, 167, and 143
Answer: 469 -
2. Algebra
Simplify: 10x - 4x + 5y - 4y
Answer: 6x + y -
3. Geometry
Adjacent = 22cm, hypotenuse = 42cm. Find the angle
Answer: 58.4° -
4. Ratio
Calculate 45.1% of 992
Answer: 447.39 -
5. Statistics
A spinner has 5 red, 2 blue and 3 green sections. Probability of landing on red?
Answer: 1⁄2