Keystones — Lintel
Five GCSE retrieval questions · 30 December 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 206 + 624
Answer: 206 + 624 = 830 -
2. Algebra
Solve: 7x - 4 = 2x + 21
Answer: x = 5 -
3. Geometry
Adjacent = 23cm, hypotenuse = 39cm. Find the angle
Answer: 53.9° -
4. Ratio
Simplify: 8:6:10
Answer: 4:3:5 -
5. Statistics
Find the range of: 4, 17, -29, 27, -29
Answer: 56