Keystones — Lintel
Five GCSE retrieval questions · 9 April 2018 · 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 + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 30cm, angle = 50°. Find opposite
Answer: 35.8cm -
4. Ratio Mixed ratio problems
£264.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £165.00 -
5. Statistics Mean
Calculate the mean of: 34, 37, 15, 8, 28, 23, 45
Answer: 27.1