Keystones — Lintel
Five GCSE retrieval questions · 25 December 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.00036
Answer: 3.6 × 10-4 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 24cm, angle = 44°. Find adjacent side
Answer: 17.3cm -
4. Ratio Mixed ratio problems
£100.00 is shared between A and B in the ratio 2:3. How much does A receive?
Answer: £40.00 -
5. Statistics Mean
Calculate the mean of: 48, 47, 14, 20, 18, 12
Answer: 26.5