Keystones — Lintel
Five GCSE retrieval questions · 10 May 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0026
Answer: 2.6 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 12x + 36
Answer: (x - 6)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 31cm, angle = 25°. Find adjacent side
Answer: 28.cm -
4. Ratio Mixed ratio problems
Simplify: 8:12:16
Answer: 2:3:4 -
5. Statistics Mean
Calculate the mean of: 33, 41, 16, 23, 37, 21
Answer: 28.5