Keystones — Lintel
Five GCSE retrieval questions · 6 January 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.059
Answer: 5.9 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + 4x - 12
Answer: (x + 6)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 39cm, angle = 59°. Find adjacent side
Answer: 20.cm -
4. Ratio Mixed ratio problems
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 24, 12, 42, 9, 35, 9
Answer: 21.8