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Capstone · Grades 7–9 Keystones #1 29 October 2023
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Keystones — Capstone

Five GCSE retrieval questions · 29 October 2023 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 111. What are the numbers?

    Answer: 36, 37, and 38
  2. 2. Algebra

    Solve: x3 = 9

    Answer: x = 27
  3. 3. Geometry

    Find the distance between (0, 2) and (10, 11)

    Answer: 13.45
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 5 numbers is 37. If 4 of them are 33, 29, 49, 44, what is the missing number?

    Answer: 30