Keystones — Lintel
Five GCSE retrieval questions · 3 December 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
8200000
Answer: 8.2 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 13x + 42
Answer: (x - 6)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 39cm, angle = 63°. Find adjacent side
Answer: 17.7cm -
4. Ratio Mixed ratio problems
£405.00 is shared between A and B in the ratio 5:4. How much does A receive?
Answer: £225.00 -
5. Statistics Mean
Calculate the mean of: 47, 28, 5, 41, 41, 38, 25, 31
Answer: 32