Keystones — Lintel
Five GCSE retrieval questions · 25 September 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0047
Answer: 4.7 × 10^-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 5x + 6
Answer: (x - 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 15cm, angle = 36°. Find opposite
Answer: 10.9cm -
4. Ratio Mixed ratio problems
£130.00 is shared between A and B in the ratio 3:2. How much does A receive?
Answer: £78.00 -
5. Statistics Mean
Calculate the mean of: 10, 35, 14, 7, 18, 9
Answer: 15.5