Keystones — Lintel
Five GCSE retrieval questions · 5 January 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
2700000
Answer: 2.7 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + 5x - 24
Answer: (x + 8)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 30cm, angle = 37°. Find opposite
Answer: 22.6cm -
4. Ratio Mixed ratio problems
£168.00 is shared between A and B in the ratio 3:4. How much does A receive?
Answer: £72.00 -
5. Statistics Mean
Calculate the mean of: 50, 9, 5, 26, 14, 44
Answer: 24.7