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Cornerstone · Grades 3–5 Keystones #32 1 February 2026 Skills week 5 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 February 2026 · mathsvault.uk/keystones

  1. 1. Number Index law — multiplication

    Simplify: x4 × x7

    Answer: x11
  2. 2. Algebra Unknowns on both sides

    Solve: 5x - 3 = 2x + 6

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

    Convert 7m to mm

    Answer: 7000mm
  4. 4. Ratio Mixed ratio problems

    Express the first part of 5:4 as a fraction in simplest form

    Answer: 5⁄9
  5. 5. Statistics Expected frequency

    A fair coin is flipped 176 times. How many heads would you expect?

    Answer: 88

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