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Lintel · Grades 5–7 Keystones #1 6 May 2023
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Keystones — Lintel

Five GCSE retrieval questions · 6 May 2023 · mathsvault.uk/keystones

  1. 1. Number

    Simplify: x4 × x4

    Answer: x8
  2. 2. Algebra

    Solve: 5x = 55

    Answer: x = 11
  3. 3. Geometry

    A circle has area 153.9cm². Find its radius (dp)

    Answer: 7cm
  4. 4. Ratio

    Simplify: 4:12:4

    Answer: 1:3:1
  5. 5. Statistics

    Find the range of: -4, -5, -15, 30, 32

    Answer: 47