Keystones — Lintel
Five GCSE retrieval questions · 1 January 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
57000000
Answer: 5.7 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 12
Answer: (x + 4)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 27cm, angle = 47°. Find opposite
Answer: 29cm -
4. Ratio Mixed ratio problems
£322.00 is shared between A and B in the ratio 5:2. How much does A receive?
Answer: £230.00 -
5. Statistics Mean
Calculate the mean of: 25, 36, 21, 46, 20, 40
Answer: 31.3