Keystones — Lintel
Five GCSE retrieval questions · 6 January 2023 · mathsvault.uk/keystones
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1. Number Converting to standard form
9600000
Answer: 9.6 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 48
Answer: (x + 8)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 29cm, angle = 62°. Find adjacent side
Answer: 13.6cm -
4. Ratio Mixed ratio problems
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 30, 6, 10, 16, 40, 24, 24
Answer: 21.4