Keystones — Lintel

Five GCSE retrieval questions · 13 December 2022 · mathsvault.uk/keystones

1. Number

Add: ¹⁄₅ + ³⁄₄

Answer: ¹⁹⁄₂₀
2. Algebra

Factorise fully: 4x² + 14x

Answer: 2x(2x + 7)
3. Geometry

Opposite = 10cm, adjacent = 12cm. Calculate the angle

Answer: 39.8°
4. Ratio

Simplify: 6:9:18

Answer: 2:3:6
5. Statistics

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

Answer: ⁷⁄₁₁

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.