Keystones — Lintel
Five GCSE retrieval questions · 23 October 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
79000
Answer: 7.9 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² + 5x - 14
Answer: (x + 7)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 10cm, angle = 59°. Find opposite
Answer: 16.6cm -
4. Ratio Mixed ratio problems
£256.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £160.00 -
5. Statistics Mean
Calculate the mean of: 40, 29, 11, 20, 42, 50
Answer: 32