Keystones — Lintel
Five GCSE retrieval questions · 6 October 2022 · mathsvault.uk/keystones
-
1. Number Converting to standard form
93000
Answer: 9.3 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 9x + 14
Answer: (x - 7)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 18cm, angle = 51°. Find opposite
Answer: 22.2cm -
4. Ratio Mixed ratio problems
Express the first part of 2:4 as a fraction in simplest form
Answer: 1⁄3 -
5. Statistics Mean
Calculate the mean of: 35, 13, 28, 18, 20, 20
Answer: 22.3