Keystones — Cornerstone

Five GCSE retrieval questions · 15 December 2025 · mathsvault.uk/keystones

1. Number

Calculate: 65 + 50

Answer: 65 + 50 = 115
2. Algebra

Solve: x + 4 = 16

Answer: x = 12
3. Geometry

Opposite = 14cm, adjacent = 18cm. Calculate the angle

Answer: 37.9°
4. Ratio

Simplify the ratio 9:6

Answer: 3:2
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.