Keystones — Bedrock

Five GCSE retrieval questions · 7 June 2023 · mathsvault.uk/keystones

1. Number

Calculate: ⁶⁄₉ + ¹⁄₉

Answer: ⁷⁄₉
2. Algebra

Factorise: 48x + 42

Answer: 6(8x + 7)
3. Geometry

Opposite = 14cm, hypotenuse = 16.2cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 12:24

Answer: 1:2
5. Statistics

Find the mean of: 20, 16, 15

Answer: 17

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