Keystones Lintel — 2 November 2011

Keystones — Lintel

Five GCSE retrieval questions · 2 November 2011 · mathsvault.uk/keystones

1. Number Converting to standard form

Write 950,000 in standard form

Answer: 9.5 × 10⁵
2. Algebra Factorising monic quadratics

Factorise: x² - 16x + 64

Answer: (x - 8)(x - 8)
3. Geometry SOHCAHTOA — missing length

Adjacent = 15cm, angle = 45°. Find opposite

Answer: 15cm
4. Ratio Mixed ratio problems

Simplify: 18:9:6

Answer: 6:3:2
5. Statistics Mean

Calculate the mean of: 23, 10, 23, 29, 9, 14

Answer: 18

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.