Keystones — Lintel
Five GCSE retrieval questions · 15 July 2016 · mathsvault.uk/keystones
-
1. Number Converting to standard form
Write 0.0027 in standard form
Answer: 2.7 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 21x + 110
Answer: (x - 10)(x - 11) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 24cm, angle = 52°. Find adjacent side. Give your answer to 2 decimal places
Answer: 14.78cm -
4. Ratio Mixed ratio problems
£150.00 is shared between A and B in the ratio 2:1. How much does A receive?
Answer: £100.00 -
5. Statistics Mean
Calculate the mean of: 25, 44, 48, 24, 32, 46, 39, 33. Give your answer to 2 decimal places
Answer: 36.38