Keystones — Lintel
Five GCSE retrieval questions · 25 October 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
4400000
Answer: 4.4 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 6x + 8
Answer: (x - 2)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 14cm, angle = 50°. Find opposite
Answer: 16.7cm -
4. Ratio Mixed ratio problems
£350.00 is shared between A and B in the ratio 3:4. How much does A receive?
Answer: £150.00 -
5. Statistics Mean
Calculate the mean of: 23, 7, 20, 7, 40, 39, 30, 21
Answer: 23.4