Keystones — Lintel
Five GCSE retrieval questions · 5 June 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.016
Answer: 1.6 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² - 6x + 8
Answer: (x - 4)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 28cm, angle = 42°. Find opposite
Answer: 25.2cm -
4. Ratio Mixed ratio problems
£252.00 is shared between A and B in the ratio 5:2. How much does A receive?
Answer: £180.00 -
5. Statistics Mean
Calculate the mean of: 30, 33, 44, 28, 44, 22, 32, 47
Answer: 35