Keystones — Lintel
Five GCSE retrieval questions · 5 July 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
80000000
Answer: 8 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 36cm, angle = 38°. Find adjacent side
Answer: 28.4cm -
4. Ratio Mixed ratio problems
£180.00 is shared between A and B in the ratio 5:4. How much does A receive?
Answer: £100.00 -
5. Statistics Mean
Calculate the mean of: 18, 36, 13, 48, 7, 42
Answer: 27.3