Keystones — Lintel
Five GCSE retrieval questions · 7 August 2025 · mathsvault.uk/keystones
-
1. Number Converting to standard form
9400000
Answer: 9.4 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 11cm, angle = 59°. Find opposite
Answer: 18.3cm -
4. Ratio Mixed ratio problems
Express the first part of 5:3 as a fraction in simplest form
Answer: 5⁄8 -
5. Statistics Mean
Calculate the mean of: 34, 47, 39, 11, 37, 49
Answer: 36.2