Keystones — Lintel
Five GCSE retrieval questions · 9 May 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.088
Answer: 8.8 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² - 8x + 16
Answer: (x - 4)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 32cm, angle = 31°. Find adjacent side
Answer: 27.4cm -
4. Ratio Mixed ratio problems
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 24, 20, 45, 36, 11, 13, 48, 49
Answer: 30.8