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Lintel · Grades 5–7 Keystones #1 29 April 2023
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Keystones — Lintel

Five GCSE retrieval questions · 29 April 2023 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 24 + 23 + 14

    Answer: 1712
  2. 2. Algebra

    Solve: x2 = 10

    Answer: x = 20
  3. 3. Geometry

    Adjacent = 21cm, hypotenuse = 33cm. Find the angle

    Answer: 50.5°
  4. 4. Ratio

    Calculate 40.1% of 616

    Answer: 247.02
  5. 5. Statistics

    Calculate the mean of: 49, 48, 40, 25, 20, 23

    Answer: 34.2