Keystones — Lintel
Five GCSE retrieval questions · 10 January 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.033
Answer: 3.3 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 26cm, angle = 59°. Find opposite
Answer: 43.3cm -
4. Ratio Mixed ratio problems
£266.00 is shared between A and B in the ratio 3:4. How much does A receive?
Answer: £114.00 -
5. Statistics Mean
Calculate the mean of: 7, 24, 13, 41, 21, 45, 41, 43
Answer: 29.4