Keystones — Bedrock

Five GCSE retrieval questions · 16 October 2025 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁄₉ + ³⁄₉

Answer: ⁴⁄₉
2. Algebra

Find the next term: 22, 28, 34, 40, ...

Answer: 46
3. Geometry

Opposite = 14cm, hypotenuse = 16.2cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 12:15

Answer: 4:5
5. Statistics

Find the range of: 15, 15, 21, 27, 26

Answer: 12

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