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Cornerstone · Grades 3–5 Keystones #1 9 June 2025 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 June 2025 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄6 + 2⁄6

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

    Solve: 7x + 4 = 74

    Answer: x = 10
  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

    Divide 208 in the ratio 1:4:3

    Answer: 26, 104 and 78
  5. 5. Statistics Mean

    Calculate the mean of: 10, 33, 14, 30, 35, 18, 9

    Answer: 21.3

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