Keystones — Lintel
Five GCSE retrieval questions · 6 December 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
3100000
Answer: 3.1 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + 6x - 16
Answer: (x + 8)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 39cm, angle = 29°. Find adjacent side
Answer: 34.cm -
4. Ratio Mixed ratio problems
Divide 80 in the ratio 1:2:1
Answer: 20, 40 and 20 -
5. Statistics Mean
Calculate the mean of: 37, 31, 8, 39, 25, 35
Answer: 29.2