Keystones — Bedrock

Five GCSE retrieval questions · 17 June 2023 · mathsvault.uk/keystones

1. Number

Calculate: ⁵⁄₉ + ¹⁄₉

Answer: ²⁄₃
2. Algebra

Find the next term: 17, 23, 29, 35, ...

Answer: 41
3. Geometry

Opposite = 7cm, hypotenuse = 9.9cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Simplify the ratio 24:15

Answer: 8:5
5. Statistics

Find the mean of: 17, 2, 5, 10, 17

Answer: 10.2

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