Keystones — Lintel
Five GCSE retrieval questions · 12 September 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.08
Answer: 8 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 20
Answer: (x + 5)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 29cm, angle = 47°. Find opposite
Answer: 31.cm -
4. Ratio Mixed ratio problems
£162.00 is shared between A and B in the ratio 2:1. How much does A receive?
Answer: £108.00 -
5. Statistics Mean
Calculate the mean of: 13, 31, 26, 16, 6, 20, 32
Answer: 20.6