Keystones — Lintel
Five GCSE retrieval questions · 24 June 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
85000
Answer: 8.5 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 8
Answer: (x + 4)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 20cm, angle = 50°. Find adjacent side
Answer: 12.9cm -
4. Ratio Mixed ratio problems
£320.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £200.00 -
5. Statistics Mean
Calculate the mean of: 25, 6, 7, 42, 6, 42, 45, 11
Answer: 23