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Capstone · Grades 7–9 Keystones #1 18 April 2022
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Keystones — Capstone

Five GCSE retrieval questions · 18 April 2022 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 126. What are the numbers?

    Answer: 41, 42, and 43
  2. 2. Algebra

    Solve: x6 = 2.8333333333333

    Answer: x = 17
  3. 3. Geometry

    Adjacent = 28cm, hypotenuse = 33cm. Find the angle

    Answer: 32°
  4. 4. Ratio

    Calculate 32.2% of 452

    Answer: 145.54
  5. 5. Statistics

    The mean of 4 numbers is 40. If 3 of them are 33, 31, 49, what is the missing number?

    Answer: 47