Keystones — Lintel
Five GCSE retrieval questions · 26 December 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
7500000
Answer: 7.5 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + 4x - 5
Answer: (x + 5)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 27cm, angle = 46°. Find opposite
Answer: 28cm -
4. Ratio Mixed ratio problems
£273.00 is shared between A and B in the ratio 5:2. How much does A receive?
Answer: £195.00 -
5. Statistics Mean
Calculate the mean of: 37, 25, 13, 47, 29, 41, 39, 30
Answer: 32.6