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Capstone · Grades 7–9 Keystones #1 12 January 2022
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Keystones — Capstone

Five GCSE retrieval questions · 12 January 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 12 + 16 + 23

    Answer: 43
  2. 2. Algebra

    Simplify: 7x - 3x + 10y - 8y

    Answer: 4x + 2y
  3. 3. Geometry

    Adjacent = 25cm, hypotenuse = 32cm. Find the angle

    Answer: 38.6°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 5 numbers is 26. If 4 of them are 36, 47, 48, 40, what is the missing number?

    Answer: -41