Keystones — Lintel
Five GCSE retrieval questions · 17 February 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 995 + 743
Answer: 1738 -
2. Algebra
Expand: 2(3x + 7)
Answer: 6x + 14 -
3. Geometry
Find the distance between (-1, -5) and (6, 7)
Answer: 13.89 -
4. Ratio
Find 17% of 452
Answer: 76.84 -
5. Statistics
A bag has 3 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2