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Lintel · Grades 5–7 Keystones #1 19 December 2024
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Keystones — Lintel

Five GCSE retrieval questions · 19 December 2024 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 997 + 651

    Answer: 1648
  2. 2. Algebra

    Solve: x8 = 5

    Answer: x = 40
  3. 3. Geometry

    Calculate perimeter: two sides are 12cm and 15cm at right angles

    Answer: 46.2cm
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 7 red and 5 blue balls. What is the probability of picking a red ball?

    Answer: 712