Keystones — Lintel

Five GCSE retrieval questions · 5 February 2025 · mathsvault.uk/keystones

1. Number

Calculate: 998 + 780

Answer: 1778
2. Algebra

Factorise: 4x² + 9x

Answer: x(4x + 9)
3. Geometry

Opposite = 10cm, adjacent = 16cm. Calculate the angle

Answer: 32°
4. Ratio

Simplify: 12:6:12

Answer: 2:1:2
5. Statistics

A bag has 4 red and 7 blue balls. What is the probability of picking a red ball?

Answer: ⁴⁄₁₁

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.