Keystones — Bedrock

Five GCSE retrieval questions · 21 August 2023 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁄₅ + ³⁄₅

Answer: ⁴⁄₅
2. Algebra

Find the next term: 24, 27, 30, 33, ...

Answer: 36
3. Geometry

Opposite = 5cm, hypotenuse = 5.8cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 28:20

Answer: 7:5
5. Statistics

Find the mean of: 19, 20, 14, 19, 16

Answer: 17.6

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