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Capstone · Grades 7–9 Keystones #1 3 February 2022
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Keystones — Capstone

Five GCSE retrieval questions · 3 February 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 24 + 12 + 23

    Answer: 53
  2. 2. Algebra

    Solve: x5 = 2.8

    Answer: x = 14
  3. 3. Geometry

    Adjacent = 13cm, hypotenuse = 20cm. Find the angle

    Answer: 49.5°
  4. 4. Ratio

    Calculate 30.2% of 632

    Answer: 190.86
  5. 5. Statistics

    The mean of 6 numbers is 38. If 5 of them are 48, 27, 38, 17, 25, what is the missing number?

    Answer: 73