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Cornerstone · Grades 3–5 Keystones #1 25 May 2023
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Keystones — Cornerstone

Five GCSE retrieval questions · 25 May 2023 · mathsvault.uk/keystones

  1. 1. Number

    What is the missing number: 30 + ? = 111

    Answer: 81
  2. 2. Algebra

    Solve: 4x = 40

    Answer: x = 10
  3. 3. Geometry

    Find the area of a circle with radius 5cm

    Answer: 78.54cm²
  4. 4. Ratio

    Find 65% of 373

    Answer: 242.45
  5. 5. Statistics

    What is the probability of rolling a 1 on a fair die?

    Answer: 1⁄6

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