Keystones Lintel — 23 May 2014

Keystones — Lintel

Five GCSE retrieval questions · 23 May 2014 · mathsvault.uk/keystones

1. Number Converting to standard form

Write 71,000,000 in standard form

Answer: 7.1 × 10⁷
2. Algebra Factorising monic quadratics

Factorise: x² - x - 6

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

Adjacent = 30cm, angle = 36°. Find opposite. Give your answer to 2 decimal places

Answer: 21.8cm
4. Ratio Mixed ratio problems

Simplify: 24:20:20

Answer: 6:5:5
5. Statistics Mean

Calculate the mean of: 35, 17, 30, 33, 31, 32, 36, 26

Answer: 30

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.