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Bedrock · Grades 1–3 Keystones #1 2 May 2021
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Keystones — Bedrock

Five GCSE retrieval questions · 2 May 2021 · mathsvault.uk/keystones

  1. 1. Number

    Round 39 to the nearest 10

    Answer: 40
  2. 2. Algebra

    Factorise: 24x + 21

    Answer: 3(8x + 7)
  3. 3. Geometry

    Find the area of a circle with radius 9cm

    Answer: 254.47cm²
  4. 4. Ratio

    Calculate 10% of 49

    Answer: 4.9
  5. 5. Statistics

    Find the range of: 40, 19, 15, 26, 28

    Answer: 25

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