Keystones — Lintel
Five GCSE retrieval questions · 2 May 2025 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.00072
Answer: 7.2 × 10-4 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 39cm, angle = 63°. Find adjacent side
Answer: 17.7cm -
4. Ratio Mixed ratio problems
£182.00 is shared between A and B in the ratio 5:2. How much does A receive?
Answer: £130.00 -
5. Statistics Mean
Calculate the mean of: 34, 45, 37, 12, 30, 40, 39, 25
Answer: 32.8