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Bedrock · Grades 1–3 Keystones #1 9 December 2021
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Keystones — Bedrock

Five GCSE retrieval questions · 9 December 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 5⁄10 + 2⁄10

    Answer: 7⁄10
  2. 2. Algebra

    Solve: x + 8 = 12

    Answer: x = 4
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 20cm. Find the angle

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

    Simplify the ratio 21:24

    Answer: 7:8
  5. 5. Statistics

    Find the mean of: 4, 18, 15, 18

    Answer: 13.75

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