Keystones — Bedrock

Five GCSE retrieval questions · 2 June 2024 · mathsvault.uk/keystones

1. Number

Calculate: ⁷⁄₉ + ¹⁄₉

Answer: ⁸⁄₉
2. Algebra

Factorise: 40x + 40

Answer: 5(8x + 8)
3. Geometry

Find the area of a right triangle with base 10cm and height 5cm

Answer: 25cm²
4. Ratio

Calculate 50% of 63

Answer: 31.5
5. Statistics

Find the mean of: 10, 9, 5, 10, 2

Answer: 7.2

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