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Capstone · Grades 7–9 Keystones #1 28 September 2024
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Keystones — Capstone

Five GCSE retrieval questions · 28 September 2024 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 16 + 24 + 45

    Answer: 2215
  2. 2. Algebra

    Solve: x8 = 2.375

    Answer: x = 19
  3. 3. Geometry

    Adjacent = 22cm, hypotenuse = 40cm. Find the angle

    Answer: 56.6°
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 5 numbers is 39. If 4 of them are 21, 45, 21, 35, what is the missing number?

    Answer: 73