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Cornerstone · Grades 3–5 Keystones #1 11 August 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 11 August 2021 · mathsvault.uk/keystones

  1. 1. Number

    Find the total of 283, 265, and 109

    Answer: 657
  2. 2. Algebra

    Collect like terms: 7x + 3y + 3x + 6y

    Answer: 10x + 9y
  3. 3. Geometry

    Opposite = 18cm, adjacent = 20cm. Calculate the angle

    Answer: 42°
  4. 4. Ratio

    Calculate 50% of 114

    Answer: 57
  5. 5. Statistics

    A bag has 6 red and 7 blue balls. What is the probability of picking a red ball?

    Answer: 6⁄13

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