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Bedrock · Grades 1–3 Keystones #1 7 December 2021
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Keystones — Bedrock

Five GCSE retrieval questions · 7 December 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 1⁄8 + 6⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Factorise: 30x + 36

    Answer: 6(5x + 6)
  3. 3. Geometry

    Opposite = 11cm, hypotenuse = 22cm. Find the angle

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

    Simplify the ratio 25:30

    Answer: 5:6
  5. 5. Statistics

    Find the mean of: 5, 11, 19

    Answer: 11.666666666667

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