Keystones — Lintel
Five GCSE retrieval questions · 26 June 2025 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.00081
Answer: 8.1 × 10-4 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 32cm, angle = 26°. Find adjacent side
Answer: 28.8cm -
4. Ratio Mixed ratio problems
£315.00 is shared between A and B in the ratio 3:4. How much does A receive?
Answer: £135.00 -
5. Statistics Mean
Calculate the mean of: 34, 44, 40, 29, 33, 20
Answer: 33.3