Keystones — Lintel
Five GCSE retrieval questions · 29 April 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.007
Answer: 7 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 12
Answer: (x + 4)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 27cm, angle = 30°. Find opposite
Answer: 15.6cm -
4. Ratio Mixed ratio problems
£301.00 is shared between A and B in the ratio 4:3. How much does A receive?
Answer: £172.00 -
5. Statistics Mean
Calculate the mean of: 7, 14, 37, 17, 28, 30, 18
Answer: 21.6