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Capstone · Grades 7–9 Keystones #1 31 May 2021
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Keystones — Capstone

Five GCSE retrieval questions · 31 May 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 1⁄2 + 3⁄6 + 1⁄2

    Answer: 3⁄2
  2. 2. Algebra

    Factorise fully: 15x² + 10x

    Answer: 5x(3x + 2)
  3. 3. Geometry

    Adjacent = 12cm, hypotenuse = 19cm. Find the angle

    Answer: 50.8°
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 4 numbers is 32. If 3 of them are 17, 21, 46, what is the missing number?

    Answer: 44

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