Keystones — Lintel
Five GCSE retrieval questions · 20 May 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
700000
Answer: 7 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 24
Answer: (x + 6)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 24cm, angle = 42°. Find adjacent side
Answer: 17.8cm -
4. Ratio Mixed ratio problems
£259.00 is shared between A and B in the ratio 4:3. How much does A receive?
Answer: £148.00 -
5. Statistics Mean
Calculate the mean of: 12, 35, 31, 48, 45, 44
Answer: 35.8