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Capstone · Grades 7–9 Keystones #1 30 April 2021
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Keystones — Capstone

Five GCSE retrieval questions · 30 April 2021 · mathsvault.uk/keystones

  1. 1. Number

    Simplify: y4 × y5 × y5

    Answer: y14
  2. 2. Algebra

    Factorise fully: 12x² + 10x

    Answer: 2x(6x + 5)
  3. 3. Geometry

    Adjacent = 21cm, hypotenuse = 39cm. Find the angle

    Answer: 57.4°
  4. 4. Ratio

    Calculate 13.2% of 916

    Answer: 120.91
  5. 5. Statistics

    A spinner has 5 red, 4 blue and 6 green sections. Probability of landing on red?

    Answer: 1⁄3

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