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Lintel · Grades 5–7 Keystones #1 5 November 2023
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Keystones — Lintel

Five GCSE retrieval questions · 5 November 2023 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 102. What are the numbers?

    Answer: 33, 34, and 35
  2. 2. Algebra

    Solve: x2 = 9

    Answer: x = 18
  3. 3. Geometry

    Calculate the area of a right triangle with perpendicular sides 13cm and 14cm

    Answer: 91cm²
  4. 4. Ratio

    Calculate 43.7% of 839

    Answer: 366.64
  5. 5. Statistics

    Calculate the mean of: 24, 45, 7, 14, 7, 38, 25, 18

    Answer: 22.3