Keystones — Lintel
Five GCSE retrieval questions · 23 November 2020 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.00043
Answer: 4.3 × 10-4 -
2. Algebra Factorising monic quadratics
Factorise: x² - 9x + 18
Answer: (x - 6)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 40cm, angle = 46°. Find adjacent side
Answer: 27.8cm -
4. Ratio Mixed ratio problems
£203.00 is shared between A and B in the ratio 5:2. How much does A receive?
Answer: £145.00 -
5. Statistics Mean
Calculate the mean of: 46, 28, 17, 15, 20, 6
Answer: 22