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Lintel · Grades 5–7 Keystones #1 24 August 2022
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Keystones — Lintel

Five GCSE retrieval questions · 24 August 2022 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 123. What are the numbers?

    Answer: 40, 41, and 42
  2. 2. Algebra

    Solve: 5x = 75

    Answer: x = 15
  3. 3. Geometry

    Calculate the area of a circle with diameter 18cm

    Answer: 254.47cm²
  4. 4. Ratio

    Simplify: 12:10:10

    Answer: 6:5:5
  5. 5. Statistics

    A spinner has 5 red, 6 blue and 6 green sections. Probability of landing on red?

    Answer: 517