Keystones — Cornerstone

Five GCSE retrieval questions · 28 April 2025 · mathsvault.uk/keystones

1. Number

Simplify: 3³ × 3⁵

Answer: 3⁸
2. Algebra

For y = x³, find y when x = 2

Answer: y = 8
3. Geometry

Opposite = 6cm, hypotenuse = 6.9cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 35:40

Answer: 7:8
5. Statistics

Calculate the mean of: 25, 38, 9, 30, 11, 44, 7, 36

Answer: 25

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.