Keystones — Lintel
Five GCSE retrieval questions · 17 August 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.043
Answer: 4.3 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 8
Answer: (x + 4)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 25cm, angle = 30°. Find opposite
Answer: 14.4cm -
4. Ratio Mixed ratio problems
£266.00 is shared between A and B in the ratio 2:5. How much does A receive?
Answer: £76.00 -
5. Statistics Mean
Calculate the mean of: 50, 35, 6, 41, 13, 17
Answer: 27