Keystones — Bedrock

Five GCSE retrieval questions · 5 September 2023 · mathsvault.uk/keystones

1. Number

30000

Answer: 3 × 10⁴
2. Algebra

Find the next term: 30, 36, 42, 48, ...

Answer: 54
3. Geometry

Opposite = 7cm, hypotenuse = 8.cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 18:15

Answer: 6:5
5. Statistics

Find the range of: 42, 20, 29, 42, 33

Answer: 22

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