Keystones — Cornerstone

Five GCSE retrieval questions · 19 January 2023 · mathsvault.uk/keystones

1. Number

What is the missing number: 42 + ? = 186

Answer: 144
2. Algebra

Solve: 2x = 10

Answer: x = 5
3. Geometry

Opposite = 13cm, hypotenuse = 18.4cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Find 70% of 81

Answer: 56.7
5. Statistics

What is the probability of rolling a 3 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.