Keystones — Lintel
Five GCSE retrieval questions · 11 February 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.00093
Answer: 9.3 × 10^-4 -
2. Algebra Factorising monic quadratics
Factorise: x² - 4x + 4
Answer: (x - 2)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 39cm, angle = 35°. Find adjacent side
Answer: 31.9cm -
4. Ratio Mixed ratio problems
£195.00 is shared between A and B in the ratio 2:3. How much does A receive?
Answer: £78.00 -
5. Statistics Mean
Calculate the mean of: 37, 24, 27, 11, 47, 16
Answer: 27