Keystones — Lintel

Five GCSE retrieval questions · 19 January 2023 · mathsvault.uk/keystones

1. Number

What is the missing number: 58 + ? = 109

Answer: 51
2. Algebra

Factorise: 6x² + 6x

Answer: 6x(x + 1)
3. Geometry

Opposite = 9cm, adjacent = 9cm. Calculate the angle

Answer: 45°
4. Ratio

Simplify: 18:12:6

Answer: 3:2:1
5. Statistics

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

Answer: ⁸⁄₁₃

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.