Keystones — Lintel
Five GCSE retrieval questions · 22 February 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.079
Answer: 7.9 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 26cm, angle = 26°. Find adjacent side
Answer: 23.4cm -
4. Ratio Mixed ratio problems
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 19, 40, 44, 43, 29, 27, 46
Answer: 35.4