Keystones — Bedrock

Five GCSE retrieval questions · 9 November 2022 · mathsvault.uk/keystones

1. Number

7000

Answer: 7 × 10³
2. Algebra

Find the next term: 23, 32, 41, 50, ...

Answer: 59
3. Geometry

Opposite = 5cm, hypotenuse = 7.cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Calculate 25% of 21

Answer: 5.25
5. Statistics

Find the range of: 32, 24, 25, 26, 17

Answer: 15

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