Keystones — Cornerstone

Five GCSE retrieval questions · 20 April 2025 · mathsvault.uk/keystones

1. Number

Calculate: ³⁄₇ + ¹⁄₇

Answer: ⁴⁄₇
2. Algebra

Expand: 5(x + 5)

Answer: 5x + 25
3. Geometry

Opposite = 5cm, hypotenuse = 10cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify: 12:16:24

Answer: 3:4:6
5. Statistics

What is the probability of getting heads when flipping a fair coin?

Answer: ¹⁄₂

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.