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Lintel · Grades 5–7 Keystones #1 24 March 2022
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Keystones — Lintel

Five GCSE retrieval questions · 24 March 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 993 + 728

    Answer: 1721
  2. 2. Algebra

    Simplify: 7x - 2x + 6y - y

    Answer: 5x + 5y
  3. 3. Geometry

    Find c if a = 10cm and b = 18cm in a right triangle

    Answer: 20.6cm
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 5 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 5⁄13

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