Keystones — Cornerstone

Five GCSE retrieval questions · 12 December 2024 · mathsvault.uk/keystones

1. Number

Add: ³⁄₄ + ¹⁄₅

Answer: ¹⁹⁄₂₀
2. Algebra

Factorise: 18x + 15

Answer: 3(6x + 5)
3. Geometry

Calculate the area of a circle with diameter 22cm

Answer: 380.13cm²
4. Ratio

Find 80% of 387

Answer: 309.6
5. Statistics

Calculate the range of: 61, 97, 102, 65, 50, 104

Answer: 54

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.