Keystones — Lintel
Five GCSE retrieval questions · 18 December 2016 · mathsvault.uk/keystones
-
1. Number Converting to standard form
Write 0.00076 in standard form
Answer: 7.6 × 10-4 -
2. Algebra Factorising monic quadratics
Factorise: x² - 4x - 60
Answer: (x + 6)(x - 10) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 34cm, angle = 27°. Find adjacent side. Give your answer to 2 decimal places
Answer: 30.29cm -
4. Ratio Mixed ratio problems
£350.00 is shared between A and B in the ratio 3:4. How much does A receive?
Answer: £150.00 -
5. Statistics Mean
Calculate the mean of: 39, 18, 24, 30, 18, 42, 44. Give your answer to 2 decimal places
Answer: 30.71