Keystones Lintel — 20 July 2022

Keystones — Lintel

Five GCSE retrieval questions · 20 July 2022 · mathsvault.uk/keystones

1. Number Converting to standard form

31000000

Answer: 3.1 × 10⁷
2. Algebra Factorising monic quadratics

Factorise: x² - 5x + 6

Answer: (x - 3)(x - 2)
3. Geometry SOHCAHTOA — missing length

Adjacent = 23cm, angle = 37°. Find opposite

Answer: 17.3cm
4. Ratio Mixed ratio problems

Simplify the ratio 7m:700cm

Answer: 1:100
5. Statistics Mean

Calculate the mean of: 17, 28, 15, 26, 34, 13, 39

Answer: 24.6

Same five questions for everyone on Lintel on this date. Sets are stored as JSON for reliable print-on-demand — sign in for school-branded PDFs.