Keystones — Lintel
Five GCSE retrieval questions · 1 March 2020 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.00088
Answer: 8.8 × 10-4 -
2. Algebra Factorising monic quadratics
Factorise: x² - 10x + 24
Answer: (x - 4)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 29cm, angle = 40°. Find adjacent side
Answer: 22.2cm -
4. Ratio Mixed ratio problems
£320.00 is shared between A and B in the ratio 3:5. How much does A receive?
Answer: £120.00 -
5. Statistics Mean
Calculate the mean of: 11, 26, 38, 38, 28, 20, 21, 17
Answer: 24.9