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Cornerstone · Grades 3–5 Keystones #31 31 January 2026 Skills week 5 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 31 January 2026 · mathsvault.uk/keystones

  1. 1. Number Index law — multiplication

    Simplify: x5 × x7

    Answer: x12
  2. 2. Algebra Unknowns on both sides

    Solve: 6x + 8 = 3x + 32

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

    Convert 36cm to mm

    Answer: 360mm
  4. 4. Ratio Mixed ratio problems

    Divide 187 in the ratio 4:3:4

    Answer: 68, 51 and 68
  5. 5. Statistics Expected frequency

    A die is rolled 72 times. How many times would you expect to get a 6?

    Answer: 12

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