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Lintel · Grades 5–7 Keystones #1 22 March 2022
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Keystones — Lintel

Five GCSE retrieval questions · 22 March 2022 · mathsvault.uk/keystones

  1. 1. Number

    What is the missing number: 73 + ? = 164

    Answer: 91
  2. 2. Algebra

    Solve: 5x = 45

    Answer: x = 9
  3. 3. Geometry

    Opposite = 14cm, adjacent = 20cm. Calculate the angle

    Answer: 35°
  4. 4. Ratio

    Simplify: 12:20:20

    Answer: 3:5:5
  5. 5. Statistics

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

    Answer: 811