Keystones — Lintel
Five GCSE retrieval questions · 16 December 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0097
Answer: 9.7 × 10^-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 30
Answer: (x - 6)(x - 5) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 32cm, angle = 40°. Find adjacent side
Answer: 24.5cm -
4. Ratio Mixed ratio problems
£259.00 is shared between A and B in the ratio 3:4. How much does A receive?
Answer: £111.00 -
5. Statistics Mean
Calculate the mean of: 16, 45, 13, 13, 7, 32
Answer: 21