Keystones — Lintel

Five GCSE retrieval questions · 28 January 2023 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁄₂ + ⁴⁄₅ + ³⁄₅

Answer: ¹⁹⁄₁₀
2. Algebra

Factorise: 8x² + 6x

Answer: 2x(4x + 3)
3. Geometry

Find c if a = 12cm and b = 12cm in a right triangle

Answer: 17cm
4. Ratio

Simplify the ratio 5m:500cm

Answer: 1:100
5. Statistics

Calculate the mean of: 40, 45, 37, 23, 36, 39, 40, 31

Answer: 36.4

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.