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Capstone · Grades 7–9 Keystones #1 4 December 2021
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Keystones — Capstone

Five GCSE retrieval questions · 4 December 2021 · mathsvault.uk/keystones

  1. 1. Number

    Simplify: y5 × y3 × y4

    Answer: y12
  2. 2. Algebra

    Factorise fully: 28x² + 16x

    Answer: 4x(7x + 4)
  3. 3. Geometry

    Adjacent = 17cm, hypotenuse = 32cm. Find the angle

    Answer: 57.9°
  4. 4. Ratio

    Calculate 33.9% of 242

    Answer: 82.04
  5. 5. Statistics

    A spinner has 2 red, 5 blue and 4 green sections. Probability of landing on red?

    Answer: 2⁄11

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