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

Five GCSE retrieval questions · 1 June 2025 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄11 + 6⁄11

    Answer: 7⁄11
  2. 2. Algebra Two-step equations

    Solve: 6x + 9 = 39

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Share 95 in the ratio 2:3

    Answer: 38 and 57
  5. 5. Statistics Mean

    Find the mean of: 4, 20, 3

    Answer: 9

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