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Cornerstone · Grades 3–5 Keystones #1 5 March 2024
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Keystones — Cornerstone

Five GCSE retrieval questions · 5 March 2024 · mathsvault.uk/keystones

  1. 1. Number

    What is the missing number: 85 + ? = 111

    Answer: 26
  2. 2. Algebra

    Solve: x + 7 = 26

    Answer: x = 19
  3. 3. Geometry

    Find the area of a right triangle with base 8cm and height 9cm

    Answer: 36cm²
  4. 4. Ratio

    Simplify the ratio 20:28

    Answer: 5:7
  5. 5. Statistics

    What is the probability of rolling a 4 on a fair die?

    Answer: 16