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Cornerstone · Grades 3–5 Keystones #1 17 June 2025 Skills week 1 of 7
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Keystones — Cornerstone

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

  1. 1. Number Adding fractions

    Calculate: 6⁄11 + 3⁄11

    Answer: 9⁄11
  2. 2. Algebra Two-step equations

    Solve: 4x + 14 = 46

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 7cm

    Answer: 13.89cm
  4. 4. Ratio Sharing in a ratio

    Share 114 in the ratio 1:2

    Answer: 38 and 76
  5. 5. Statistics Mean

    Find the mean of: 8, 6, 3, 5

    Answer: 5.5

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