Keystones — Cornerstone

Five GCSE retrieval questions · 26 December 2023 · mathsvault.uk/keystones

1. Number

300000

Answer: 3 × 10⁵
2. Algebra

Solve: x + 13 = 30

Answer: x = 17
3. Geometry

Find the area of a circle with radius 7cm

Answer: 153.94cm²
4. Ratio

Find 31% of 244

Answer: 75.64
5. Statistics

Calculate the range of: 63, 61, 28, 52, 50, 42

Answer: 35

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