Keystones — Lintel
Five GCSE retrieval questions · 11 August 2022 · mathsvault.uk/keystones
-
1. Number Converting to standard form
5900000
Answer: 5.9 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 10x + 21
Answer: (x - 7)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 19cm, angle = 59°. Find adjacent side
Answer: 9.8cm -
4. Ratio Mixed ratio problems
Express the first part of 5:4 as a fraction in simplest form
Answer: 5⁄9 -
5. Statistics Mean
Calculate the mean of: 46, 43, 13, 47, 29, 38, 36, 45
Answer: 37.1