Keystones — Bedrock

Five GCSE retrieval questions · 16 June 2026 · mathsvault.uk/keystones

1. Number

9000

Answer: 9 × 10³
2. Algebra

Find the next term: 23, 29, 35, 41, ...

Answer: 47
3. Geometry

Opposite = 6cm, hypotenuse = 8.5cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Calculate 25% of 105

Answer: 26.25
5. Statistics

Find the mean of: 19, 5, 9

Answer: 11

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