Keystones — Lintel
Five GCSE retrieval questions · 10 August 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
6000000
Answer: 6 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + 4x - 5
Answer: (x + 5)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 35cm, angle = 60°. Find adjacent side
Answer: 17.5cm -
4. Ratio Mixed ratio problems
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 10, 47, 21, 43, 43, 10
Answer: 29