Keystones — Lintel
Five GCSE retrieval questions · 23 March 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
79000000
Answer: 7.9 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 48
Answer: (x + 8)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 40cm, angle = 57°. Find adjacent side
Answer: 21.8cm -
4. Ratio Mixed ratio problems
£234.00 is shared between A and B in the ratio 2:1. How much does A receive?
Answer: £156.00 -
5. Statistics Mean
Calculate the mean of: 37, 22, 38, 9, 34, 36, 5, 36
Answer: 27.1