Keystones — Lintel
Five GCSE retrieval questions · 15 February 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0087
Answer: 8.7 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 8x + 12
Answer: (x - 2)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 37cm, angle = 35°. Find adjacent side
Answer: 30.3cm -
4. Ratio Mixed ratio problems
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 24, 26, 25, 35, 17, 30
Answer: 26.2