Keystones — Lintel
Five GCSE retrieval questions · 30 May 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 5⁄6 + 1⁄4 + 4⁄5
Answer: 113⁄60 -
2. Algebra
Solve: x⁄5 = 5.4
Answer: x = 27 -
3. Geometry
A circle has area 113.cm². Find its radius (dp)
Answer: 6cm -
4. Ratio
Calculate 40.3% of 219
Answer: 88.26 -
5. Statistics
A spinner has 5 red, 4 blue and 6 green sections. Probability of landing on red?
Answer: 1⁄3