Keystones — Lintel
Five GCSE retrieval questions · 26 April 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0077
Answer: 7.7 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 19cm, angle = 53°. Find opposite
Answer: 25.2cm -
4. Ratio Mixed ratio problems
£297.00 is shared between A and B in the ratio 5:4. How much does A receive?
Answer: £165.00 -
5. Statistics Mean
Calculate the mean of: 20, 36, 15, 35, 40, 41, 10, 12
Answer: 26.1