Keystones — Lintel
Five GCSE retrieval questions · 30 January 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
9400000
Answer: 9.4 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 8x + 15
Answer: (x - 5)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 20cm, angle = 55°. Find opposite
Answer: 28.6cm -
4. Ratio Mixed ratio problems
£232.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £145.00 -
5. Statistics Mean
Calculate the mean of: 23, 32, 46, 10, 10, 17, 46, 38
Answer: 27.8