Keystones — Lintel
Five GCSE retrieval questions · 27 August 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
45000000
Answer: 4.5 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² - 6x + 9
Answer: (x - 3)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 20cm, angle = 61°. Find adjacent side
Answer: 9.7cm -
4. Ratio Mixed ratio problems
£322.00 is shared between A and B in the ratio 4:3. How much does A receive?
Answer: £184.00 -
5. Statistics Mean
Calculate the mean of: 50, 32, 45, 46, 35, 24, 27
Answer: 37