Keystones — Cornerstone

Five GCSE retrieval questions · 11 August 2022 · mathsvault.uk/keystones

1. Number

Calculate: 81 + 74

Answer: 81 + 74 = 155
2. Algebra

Factorise: 9x² + 6x

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

Find the area of a circle with radius 4cm

Answer: 50.27cm²
4. Ratio

Simplify: 12:12:18

Answer: 2:2:3
5. Statistics

What is the probability of rolling a 6 on a fair die?

Answer: ¹⁄₆

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.