Keystones — Lintel
Five GCSE retrieval questions · 6 May 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 2⁄3 + 1⁄4 + 1⁄3
Answer: 5⁄4 -
2. Algebra
Solve: x⁄2 = 18.5
Answer: x = 37 -
3. Geometry
Adjacent = 25cm, hypotenuse = 34cm. Find the angle
Answer: 42.7° -
4. Ratio
Simplify: 10:8:8
Answer: 5:4:4 -
5. Statistics
A spinner has 5 red, 3 blue and 2 green sections. Probability of landing on red?
Answer: 1⁄2