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Lintel · Grades 5–7 Keystones #1 31 October 2023
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Keystones — Lintel

Five GCSE retrieval questions · 31 October 2023 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 719 + 242

    Answer: 719 + 242 = 961
  2. 2. Algebra

    Simplify: 9x - 3x + 3y - y

    Answer: 6x + 2y
  3. 3. Geometry

    Find the perimeter: hypotenuse = 22cm, one side = 10cm

    Answer: 51.6cm
  4. 4. Ratio

    Find 48% of 82

    Answer: 39.36
  5. 5. Statistics

    A bag has 4 red and 7 blue balls. What is the probability of picking a red ball?

    Answer: 411