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Lintel · Grades 5–7 Keystones #1 17 April 2025
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Keystones — Lintel

Five GCSE retrieval questions · 17 April 2025 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 997 + 869

    Answer: 1866
  2. 2. Algebra

    Solve: 8x = 120

    Answer: x = 15
  3. 3. Geometry

    Calculate the area of a right triangle with perpendicular sides 11cm and 6cm

    Answer: 33cm²
  4. 4. Ratio

    Find 39% of 214

    Answer: 83.46
  5. 5. Statistics

    A bag has 7 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 715