Keystones — Lintel
Five GCSE retrieval questions · 24 September 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
6100000
Answer: 6.1 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + 5x - 24
Answer: (x + 8)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 18cm, angle = 54°. Find adjacent side
Answer: 10.6cm -
4. Ratio Mixed ratio problems
£165.00 is shared between A and B in the ratio 2:3. How much does A receive?
Answer: £66.00 -
5. Statistics Mean
Calculate the mean of: 42, 10, 23, 8, 46, 43
Answer: 28.7