Keystones — Cornerstone

Five GCSE retrieval questions · 27 December 2023 · mathsvault.uk/keystones

1. Number

Add: ⁴⁄₅ + ¹⁄₃

Answer: ¹⁷⁄₁₅
2. Algebra

Solve: 5x = 30

Answer: x = 6
3. Geometry

Calculate the area of a circle with diameter 11cm

Answer: 95.03cm²
4. Ratio

Simplify: 4:12:10

Answer: 2:6:5
5. Statistics

Find the mean of: 18, 3, 12, 11

Answer: 11

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