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Capstone · Grades 7–9 Keystones #1 25 September 2021
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Keystones — Capstone

Five GCSE retrieval questions · 25 September 2021 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 120. What are the numbers?

    Answer: 39, 40, and 41
  2. 2. Algebra

    Solve: x⁄3 = 6

    Answer: x = 18
  3. 3. Geometry

    Find c if a = 8cm and b = 16cm in a right triangle

    Answer: 17.9cm
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 3 red, 4 blue and 6 green sections. Probability of landing on red?

    Answer: 3⁄13

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