Keystones — Lintel
Five GCSE retrieval questions · 25 October 2018 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.0011
Answer: 1.1 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 5x + 6
Answer: (x - 2)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 16cm, angle = 26°. Find adjacent side
Answer: 14.4cm -
4. Ratio Mixed ratio problems
Express the first part of 2:6 as a fraction in simplest form
Answer: 1⁄4 -
5. Statistics Mean
Calculate the mean of: 27, 43, 32, 27, 21, 19, 10, 21
Answer: 25