Keystones — Lintel
Five GCSE retrieval questions · 4 June 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
58000000
Answer: 5.8 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² + 5x - 14
Answer: (x + 7)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 33cm, angle = 57°. Find adjacent side
Answer: 18cm -
4. Ratio Mixed ratio problems
£125.00 is shared between A and B in the ratio 3:2. How much does A receive?
Answer: £75.00 -
5. Statistics Mean
Calculate the mean of: 15, 47, 13, 42, 38, 23, 15
Answer: 27.6