Keystones — Lintel
Five GCSE retrieval questions · 29 March 2019 · mathsvault.uk/keystones
-
1. Number Converting to standard form
3100000
Answer: 3.1 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 12x + 35
Answer: (x - 5)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 30cm, angle = 47°. Find opposite
Answer: 32.2cm -
4. Ratio Mixed ratio problems
£174.00 is shared between A and B in the ratio 1:2. How much does A receive?
Answer: £58.00 -
5. Statistics Mean
Calculate the mean of: 28, 37, 33, 17, 37, 27
Answer: 29.8