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Capstone · Grades 7–9 Keystones #1 6 May 2021
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Keystones — Capstone

Five GCSE retrieval questions · 6 May 2021 · mathsvault.uk/keystones

  1. 1. Number

    Simplify: y4 × y5 × y5

    Answer: y14
  2. 2. Algebra

    Solve: x4 = 3.25

    Answer: x = 13
  3. 3. Geometry

    Adjacent = 26cm, hypotenuse = 31cm. Find the angle

    Answer: 33°
  4. 4. Ratio

    Calculate 44% of 304

    Answer: 133.76
  5. 5. Statistics

    The mean of 5 numbers is 29. If 4 of them are 40, 42, 16, 17, what is the missing number?

    Answer: 30