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Capstone · Grades 7–9 Keystones #1 19 October 2021
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Keystones — Capstone

Five GCSE retrieval questions · 19 October 2021 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 99. What are the numbers?

    Answer: 32, 33, and 34
  2. 2. Algebra

    Solve: x2 = 4

    Answer: x = 8
  3. 3. Geometry

    Adjacent = 14cm, hypotenuse = 32cm. Find the angle

    Answer: 64.1°
  4. 4. Ratio

    Calculate 21.9% of 784

    Answer: 171.7
  5. 5. Statistics

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

    Answer: 613