Keystones — Lintel
Five GCSE retrieval questions · 31 January 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0024
Answer: 2.4 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 28
Answer: (x - 7)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 34cm, angle = 44°. Find adjacent side
Answer: 24.5cm -
4. Ratio Mixed ratio problems
£296.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £185.00 -
5. Statistics Mean
Calculate the mean of: 39, 19, 32, 29, 39, 22, 21
Answer: 28.7