Keystones — Lintel
Five GCSE retrieval questions · 16 April 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0067
Answer: 6.7 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 9x + 18
Answer: (x - 3)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 29cm, angle = 44°. Find adjacent side
Answer: 20.9cm -
4. Ratio Mixed ratio problems
£210.00 is shared between A and B in the ratio 2:3. How much does A receive?
Answer: £84.00 -
5. Statistics Mean
Calculate the mean of: 19, 21, 38, 41, 28, 13
Answer: 26.7