Keystones — Lintel
Five GCSE retrieval questions · 4 April 2022 · mathsvault.uk/keystones
-
1. Number Converting to standard form
650000
Answer: 6.5 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 30
Answer: (x - 5)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 20cm, angle = 60°. Find opposite
Answer: 34.6cm -
4. Ratio Mixed ratio problems
£175.00 is shared between A and B in the ratio 5:2. How much does A receive?
Answer: £125.00 -
5. Statistics Mean
Calculate the mean of: 32, 21, 13, 16, 45, 30, 44, 27
Answer: 28.5