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Cornerstone · Grades 3–5 Keystones #1 23 August 2022
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 August 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 7.1 + 1.3

    Answer: 7.1 + 1.3 = 8.4
  2. 2. Algebra

    Solve: 3x = 30

    Answer: x = 10
  3. 3. Geometry

    Find the area of a circle with radius 9cm

    Answer: 254.47cm²
  4. 4. Ratio

    Simplify the ratio 32:20

    Answer: 8:5
  5. 5. Statistics

    What is the probability of rolling a 3 on a fair die?

    Answer: 1⁄6

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