Keystones — Lintel
Five GCSE retrieval questions · 4 October 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 = 34cm, angle = 65°. Find adjacent side
Answer: 14.4cm -
4. Ratio Mixed ratio problems
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 41, 10, 12, 31, 24, 7, 46
Answer: 24.4