Keystones — Lintel
Five GCSE retrieval questions · 1 December 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
51000
Answer: 5.1 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² + 4x - 12
Answer: (x + 6)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 20cm, angle = 41°. Find adjacent side
Answer: 15.cm -
4. Ratio Mixed ratio problems
£272.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £170.00 -
5. Statistics Mean
Calculate the mean of: 34, 46, 10, 33, 48, 36, 36
Answer: 34.7