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Lintel · Grades 5–7 Keystones #1 11 August 2022
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Keystones — Lintel

Five GCSE retrieval questions · 11 August 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 998 + 806

    Answer: 1804
  2. 2. Algebra

    Solve: 3x = 42

    Answer: x = 14
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 6cm

    Answer: 9.22cm
  4. 4. Ratio

    Simplify: 10:8:4

    Answer: 5:4:2
  5. 5. Statistics

    A bag has 8 red and 3 blue balls. What is the probability of picking a red ball?

    Answer: 811