Keystones — Cornerstone

Five GCSE retrieval questions · 3 April 2026 · mathsvault.uk/keystones

1. Number

Calculate: 846 + 451

Answer: 846 + 451 = 1297
2. Algebra

Simplify: 4x + 7x

Answer: 11x
3. Geometry

Opposite = 6cm, hypotenuse = 8.5cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Simplify the ratio 25:10

Answer: 5:2
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.