Keystones — Lintel
Five GCSE retrieval questions · 14 June 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.00014
Answer: 1.4 × 10-4 -
2. Algebra Factorising monic quadratics
Factorise: x² - 7x + 10
Answer: (x - 5)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 31cm, angle = 56°. Find adjacent side
Answer: 17.3cm -
4. Ratio Mixed ratio problems
Simplify: 8:6:4
Answer: 4:3:2 -
5. Statistics Mean
Calculate the mean of: 9, 34, 43, 37, 7, 19
Answer: 24.8