Keystones — Lintel
Five GCSE retrieval questions · 15 October 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
60000
Answer: 6 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 27cm, angle = 26°. Find adjacent side
Answer: 24.3cm -
4. Ratio Mixed ratio problems
£324.00 is shared between A and B in the ratio 4:5. How much does A receive?
Answer: £144.00 -
5. Statistics Mean
Calculate the mean of: 9, 9, 15, 12, 50, 7, 38, 31
Answer: 21.4