Keystones — Bedrock

Five GCSE retrieval questions · 17 September 2024 · mathsvault.uk/keystones

1. Number

9000

Answer: 9 × 10³
2. Algebra

Find the next term: 21, 27, 33, 39, ...

Answer: 45
3. Geometry

Opposite = 9cm, hypotenuse = 10.4cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 21:6

Answer: 7:2
5. Statistics

Find the range of: 40, 18, 39, 18, 23

Answer: 22

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