Keystones — Bedrock

Five GCSE retrieval questions · 19 August 2022 · mathsvault.uk/keystones

1. Number

50000

Answer: 5 × 10⁴
2. Algebra

Find the next term: 17, 24, 31, 38, ...

Answer: 45
3. Geometry

Opposite = 12cm, hypotenuse = 13.9cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 16:12

Answer: 4:3
5. Statistics

Find the mean of: 12, 17, 6, 13

Answer: 12

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