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Cornerstone · Grades 3–5 Keystones #1 2 May 2025 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 May 2025 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄6 + 2⁄3

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 2x + 11 = 27

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

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Divide 66 in the ratio 3:1:2

    Answer: 33, 11 and 22
  5. 5. Statistics Mean

    Find the mean of: 11, 14, 12, 2, 17

    Answer: 11.2

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