Keystones — Lintel

Five GCSE retrieval questions · 14 April 2025 · mathsvault.uk/keystones

1. Number

Calculate: 219 + 212

Answer: 219 + 212 = 431
2. Algebra

What is the next term? 4, 16, 64, 256, ...

Answer: 1024
3. Geometry

Adjacent = 23cm, hypotenuse = 34cm. Find the angle

Answer: 47.4°
4. Ratio

Simplify: 9:18:9

Answer: 1:2:1
5. Statistics

A bag has 6 red and 7 blue balls. What is the probability of picking a red ball?

Answer: ⁶⁄₁₃

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.