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Lintel · Grades 5–7 Keystones #1 31 October 2022
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Keystones — Lintel

Five GCSE retrieval questions · 31 October 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 13 + 35 + 34

    Answer: 10160
  2. 2. Algebra

    Solve: x7 = 3.4285714285714

    Answer: x = 24
  3. 3. Geometry

    Find c if a = 20cm and b = 24cm in a right triangle

    Answer: 31.2cm
  4. 4. Ratio

    Simplify: 12:6:15

    Answer: 4:2:5
  5. 5. Statistics

    Calculate the mean of: 31, 31, 5, 38, 48, 45, 48, 5

    Answer: 31.4