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Cornerstone · Grades 3–5 Keystones #1 24 April 2023
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Keystones — Cornerstone

Five GCSE retrieval questions · 24 April 2023 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 25 + 46

    Answer: 25 + 46 = 71
  2. 2. Algebra

    Collect like terms: 4x + 4y + 3x + 6y

    Answer: 7x + 10y
  3. 3. Geometry

    Calculate the area of a circle with diameter 14cm

    Answer: 153.94cm²
  4. 4. Ratio

    Calculate 50% of 134

    Answer: 67
  5. 5. Statistics

    A bag has 4 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 25