Keystones — Bedrock

Five GCSE retrieval questions · 13 May 2025 · mathsvault.uk/keystones

1. Number

Calculate: ⁶⁄₉ + ²⁄₉

Answer: ⁸⁄₉
2. Algebra

Find the next term: 14, 16, 18, 20, ...

Answer: 22
3. Geometry

Opposite = 12cm, hypotenuse = 17cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Simplify the ratio 9:21

Answer: 3:7
5. Statistics

Find the mean of: 15, 13, 5, 18

Answer: 12.75

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