Keystones — Cornerstone

Five GCSE retrieval questions · 28 April 2026 · mathsvault.uk/keystones

1. Number

Add: ¹⁄₄ + ⁴⁄₅

Answer: ²¹⁄₂₀
2. Algebra

Simplify: 3x + 5x

Answer: 8x
3. Geometry

Opposite = 19cm, adjacent = 10cm. Calculate the angle

Answer: 62.2°
4. Ratio

Find 32% of 331

Answer: 105.92
5. Statistics

Find the mean of: 8, 2, 18, 18, 7

Answer: 10.6

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