Keystones — Lintel
Five GCSE retrieval questions · 9 November 2024 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.00019
Answer: 1.9 × 10^-4 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 30
Answer: (x - 5)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 21cm, angle = 55°. Find opposite
Answer: 30cm -
4. Ratio Mixed ratio problems
£235.00 is shared between A and B in the ratio 3:2. How much does A receive?
Answer: £141.00 -
5. Statistics Mean
Calculate the mean of: 16, 6, 20, 19, 33, 23
Answer: 19.5