Keystones — Lintel
Five GCSE retrieval questions · 12 May 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
9100000
Answer: 9.1 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 42
Answer: (x + 7)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 32cm, angle = 46°. Find adjacent side
Answer: 22.2cm -
4. Ratio Mixed ratio problems
Simplify: 12:8:8
Answer: 3:2:2 -
5. Statistics Mean
Calculate the mean of: 12, 27, 29, 7, 27, 20, 9, 41
Answer: 21.5