Keystones — Lintel
Five GCSE retrieval questions · 31 May 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0082
Answer: 8.2 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 37cm, angle = 32°. Find adjacent side
Answer: 31.4cm -
4. Ratio Mixed ratio problems
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 46, 9, 41, 35, 22, 8, 23
Answer: 26.3