Keystones — Lintel
Five GCSE retrieval questions · 24 April 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.012
Answer: 1.2 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² - 4x + 4
Answer: (x - 2)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 26cm, angle = 53°. Find opposite
Answer: 34.5cm -
4. Ratio Mixed ratio problems
£238.00 is shared between A and B in the ratio 4:3. How much does A receive?
Answer: £136.00 -
5. Statistics Mean
Calculate the mean of: 20, 24, 6, 38, 28, 28, 25, 45
Answer: 26.8