Keystones — Lintel
Five GCSE retrieval questions · 13 January 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
63000000
Answer: 6.3 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 8
Answer: (x + 4)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 20cm, angle = 47°. Find adjacent side
Answer: 13.6cm -
4. Ratio Mixed ratio problems
£231.00 is shared between A and B in the ratio 4:3. How much does A receive?
Answer: £132.00 -
5. Statistics Mean
Calculate the mean of: 48, 25, 43, 22, 10, 19
Answer: 27.8