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Capstone · Grades 7–9 Keystones #1 4 August 2021
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Keystones — Capstone

Five GCSE retrieval questions · 4 August 2021 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 135. What are the numbers?

    Answer: 44, 45, and 46
  2. 2. Algebra

    Solve: x⁄4 = 9

    Answer: x = 36
  3. 3. Geometry

    Find c if a = 20cm and b = 14cm in a right triangle

    Answer: 24.4cm
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 5 red, 3 blue and 3 green sections. Probability of landing on red?

    Answer: 5⁄11

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