Keystones — Cornerstone

Five GCSE retrieval questions · 21 March 2026 · mathsvault.uk/keystones

1. Number

Add: ³⁄₅ + ¹⁄₃

Answer: ¹⁴⁄₁₅
2. Algebra

Find the next term: 29, 38, 47, 56, ...

Answer: 65
3. Geometry

Find the distance between (4, 5) and (7, 10)

Answer: 5.83
4. Ratio

Simplify the ratio 12:6

Answer: 2:1
5. Statistics

Calculate the range of: 122, 105, 87, 71, 99, 50

Answer: 72

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