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Cornerstone · Grades 3–5 Keystones #29 29 January 2026 Skills week 5 of 7
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Five GCSE retrieval questions · 29 January 2026 · mathsvault.uk/keystones

  1. 1. Number Index law — multiplication

    Simplify: 62 × 63

    Answer: 65
  2. 2. Algebra Unknowns on both sides

    Solve: 9x - 6 = 3x + 42

    Answer: x = 8
  3. 3. Geometry Converting mixed metric units

    Convert 7m to cm

    Answer: 700cm
  4. 4. Ratio Mixed ratio problems

    Simplify: 6:6:12

    Answer: 1:1:2
  5. 5. Statistics Expected frequency

    A fair coin is flipped 94 times. How many heads would you expect?

    Answer: 47

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