Keystones — Lintel
Five GCSE retrieval questions · 17 March 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0096
Answer: 9.6 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 12x + 36
Answer: (x - 6)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 21cm, angle = 46°. Find opposite
Answer: 21.7cm -
4. Ratio Mixed ratio problems
£256.00 is shared between A and B in the ratio 3:5. How much does A receive?
Answer: £96.00 -
5. Statistics Mean
Calculate the mean of: 13, 27, 24, 40, 23, 22, 22
Answer: 24.4