Keystones — Cornerstone

Five GCSE retrieval questions · 7 August 2025 · mathsvault.uk/keystones

1. Number

Calculate: 80 + 61

Answer: 80 + 61 = 141
2. Algebra

Solve: 7x + 8 = 2x + 58

Answer: x = 10
3. Geometry

Opposite = 10cm, adjacent = 18cm. Calculate the angle

Answer: 29.1°
4. Ratio

Simplify: 6:18:9

Answer: 2:6:3
5. Statistics

What is the probability of rolling a 2 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.