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Capstone · Grades 7–9 Keystones #1 5 April 2021
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Keystones — Capstone

Five GCSE retrieval questions · 5 April 2021 · mathsvault.uk/keystones

  1. 1. Number

    If x2 = 16, what is x?

    Answer: 4
  2. 2. Algebra

    Solve: x6 = 6.1666666666667

    Answer: x = 37
  3. 3. Geometry

    Adjacent = 26cm, hypotenuse = 45cm. Find the angle

    Answer: 54.7°
  4. 4. Ratio

    Calculate 30.7% of 327

    Answer: 100.39
  5. 5. Statistics

    The mean of 6 numbers is 30. If 5 of them are 45, 41, 38, 38, 19, what is the missing number?

    Answer: -1