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Capstone · Grades 7–9 Keystones #1 26 September 2022
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Keystones — Capstone

Five GCSE retrieval questions · 26 September 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 15 + 12 + 23

    Answer: 4130
  2. 2. Algebra

    Complete the square: x² + 2.4x

    Answer: (x + 1.2)² - 1.44
  3. 3. Geometry

    Adjacent = 16cm, hypotenuse = 34cm. Find the angle

    Answer: 61.9°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 3 red, 4 blue and 3 green sections. Probability of landing on red?

    Answer: 310