Keystones — Lintel

Five GCSE retrieval questions · 21 November 2025 · mathsvault.uk/keystones

1. Number

What is the missing number: 41 + ? = 146

Answer: 105
2. Algebra

Solve: 6x - 3 = 2x + 25

Answer: x = 7
3. Geometry

Adjacent = 25cm, hypotenuse = 43cm. Find the angle

Answer: 54.5°
4. Ratio

Simplify: 8:6:6

Answer: 4:3:3
5. Statistics

A bag has 8 red and 7 blue balls. What is the probability of picking a red ball?

Answer: ⁸⁄₁₅

Same five questions for everyone on Lintel on this date. Sets are stored as JSON for reliable print-on-demand — sign in for school-branded PDFs.