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Bedrock · Grades 1–3 Keystones #1 15 August 2021
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Keystones — Bedrock

Five GCSE retrieval questions · 15 August 2021 · mathsvault.uk/keystones

  1. 1. Number

    600000

    Answer: 6 × 105
  2. 2. Algebra

    Simplify: 9x + 9x

    Answer: 18x
  3. 3. Geometry

    Opposite = 15cm, hypotenuse = 30cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Simplify the ratio 6:24

    Answer: 1:4
  5. 5. Statistics

    Find the mean of: 3, 2, 18

    Answer: 7.6666666666667

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