Keystones — Lintel
Five GCSE retrieval questions · 28 July 2020 · mathsvault.uk/keystones
-
1. Number Converting to standard form
4400000
Answer: 4.4 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 8x + 12
Answer: (x - 6)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 20cm, angle = 51°. Find adjacent side
Answer: 12.6cm -
4. Ratio Mixed ratio problems
In ratio 2:3:1, what fraction is the second part?
Answer: 3⁄6 -
5. Statistics Mean
Calculate the mean of: 37, 18, 39, 8, 42, 28, 34, 34
Answer: 30