Keystones — Lintel

Five GCSE retrieval questions · 9 December 2025 · mathsvault.uk/keystones

1. Number

Calculate: 994 + 540

Answer: 1534
2. Algebra

Solve: 8x = 112

Answer: x = 14
3. Geometry

Opposite = 17cm, adjacent = 18cm. Calculate the angle

Answer: 43.4°
4. Ratio

Simplify: 20:16:16

Answer: 5:4:4
5. Statistics

A bag has 5 red and 8 blue balls. What is the probability of picking a red ball?

Answer: ⁵⁄₁₃

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.