Keystones — Lintel
Five GCSE retrieval questions · 1 November 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.094
Answer: 9.4 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 48
Answer: (x + 8)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 39cm, angle = 44°. Find adjacent side
Answer: 28.cm -
4. Ratio Mixed ratio problems
£294.00 is shared between A and B in the ratio 2:1. How much does A receive?
Answer: £196.00 -
5. Statistics Mean
Calculate the mean of: 49, 21, 5, 27, 33, 48, 35, 6
Answer: 28