Keystones — Cornerstone

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

1. Number

Add: ¹⁄₅ + ²⁄₃

Answer: ¹³⁄₁₅
2. Algebra

Factorise: 4x + 10

Answer: 2(2x + 5)
3. Geometry

Calculate the distance between (8, 7) and (11, 11)

Answer: 5
4. Ratio

Calculate 50% of 163

Answer: 81.5
5. Statistics

Find the mean of: 9, 9, 14, 5, 18

Answer: 11

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