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Capstone · Grades 7–9 Keystones #1 1 November 2021
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Keystones — Capstone

Five GCSE retrieval questions · 1 November 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 23 + 35 + 45

    Answer: 3115
  2. 2. Algebra

    Complete the square: x² + 5.8x

    Answer: (x + 2.9)² - 8.41
  3. 3. Geometry

    Adjacent = 20cm, hypotenuse = 35cm. Find the angle

    Answer: 55.2°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 2 red, 6 blue and 6 green sections. Probability of landing on red?

    Answer: 17