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Capstone · Grades 7–9 Keystones #1 28 September 2021
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Keystones — Capstone

Five GCSE retrieval questions · 28 September 2021 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 117. What are the numbers?

    Answer: 38, 39, and 40
  2. 2. Algebra

    Solve: x2 = 8.5

    Answer: x = 17
  3. 3. Geometry

    Adjacent = 22cm, hypotenuse = 28cm. Find the angle

    Answer: 38.2°
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 5 red, 6 blue and 2 green sections. Probability of landing on red?

    Answer: 513