Keystones — Lintel
Five GCSE retrieval questions · 4 October 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
44000
Answer: 4.4 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 32cm, angle = 30°. Find adjacent side
Answer: 27.7cm -
4. Ratio Mixed ratio problems
£288.00 is shared between A and B in the ratio 5:4. How much does A receive?
Answer: £160.00 -
5. Statistics Mean
Calculate the mean of: 48, 30, 19, 39, 39, 36, 23, 32
Answer: 33.3