Keystones — Cornerstone
Five GCSE retrieval questions · 6 January 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 80 + 61
Answer: 80 + 61 = 141 -
2. Algebra
Solve: 2x = 26
Answer: x = 13 -
3. Geometry
Calculate the distance between (9, 8) and (12, 12)
Answer: 5 -
4. Ratio
Simplify: 24:12:12
Answer: 2:1:1 -
5. Statistics
Calculate the range of: 51, 73, 53, 77, 26, 26
Answer: 51