Keystones — Lintel
Five GCSE retrieval questions · 16 August 2017 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 92,000 in standard form
Answer: 9.2 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 9x + 8
Answer: (x - 1)(x - 8) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 10cm, angle = 58°. Find opposite. Give your answer to 2 decimal places
Answer: 16cm -
4. Ratio Mixed ratio problems
£252.00 is shared between A and B in the ratio 2:1. How much does A receive?
Answer: £168.00 -
5. Statistics Mean
Calculate the mean of: 27, 29, 39, 48, 26, 32, 47. Give your answer to 2 decimal places
Answer: 35.43