Keystones — Lintel
Five GCSE retrieval questions · 25 June 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
970000
Answer: 9.7 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 5x + 6
Answer: (x - 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 27cm, angle = 58°. Find opposite
Answer: 43.2cm -
4. Ratio Mixed ratio problems
£175.00 is shared between A and B in the ratio 5:2. How much does A receive?
Answer: £125.00 -
5. Statistics Mean
Calculate the mean of: 50, 28, 9, 25, 23, 19, 30
Answer: 26.3