Keystones — Lintel
Five GCSE retrieval questions · 16 April 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
28000000
Answer: 2.8 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² - 10x + 24
Answer: (x - 4)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 37cm, angle = 50°. Find adjacent side
Answer: 23.8cm -
4. Ratio Mixed ratio problems
£273.00 is shared between A and B in the ratio 2:5. How much does A receive?
Answer: £78.00 -
5. Statistics Mean
Calculate the mean of: 35, 49, 6, 22, 19, 41, 18, 8
Answer: 24.8