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Cornerstone · Grades 3–5 Keystones #1 29 August 2022
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Keystones — Cornerstone

Five GCSE retrieval questions · 29 August 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 5⁄12 + 1⁄12

    Answer: 1⁄2
  2. 2. Algebra

    Expand: 3(x + 5)

    Answer: 3x + 15
  3. 3. Geometry

    Find the area of a circle with radius 10cm

    Answer: 314.16cm²
  4. 4. Ratio

    Find 16% of 199

    Answer: 31.84
  5. 5. Statistics

    What is the probability of getting heads when flipping a fair coin?

    Answer: 1⁄2

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