Keystones — Lintel
Five GCSE retrieval questions · 17 December 2017 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 32,000 in standard form
Answer: 3.2 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 4x - 5
Answer: (x + 1)(x - 5) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 22cm, angle = 37°. Find adjacent side. Give your answer to 2 decimal places
Answer: 17.57cm -
4. Ratio Mixed ratio problems
£185.00 is shared between A and B in the ratio 2:3. How much does A receive?
Answer: £74.00 -
5. Statistics Mean
Calculate the mean of: 46, 25, 6, 26, 28, 37, 10, 32
Answer: 26.25