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Cornerstone · Grades 3–5 Keystones #1 26 October 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 October 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 57 + 89

    Answer: 57 + 89 = 146
  2. 2. Algebra

    Solve: 4x = 52

    Answer: x = 13
  3. 3. Geometry

    Find the area of a circle with radius 3cm

    Answer: 28.27cm²
  4. 4. Ratio

    Simplify the ratio 14:12

    Answer: 7:6
  5. 5. Statistics

    What is the probability of rolling a 2 on a fair die?

    Answer: 1⁄6

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