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Cornerstone · Grades 3–5 Keystones #298 25 October 2026 Skills week 1 of 7
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Five GCSE retrieval questions · 25 October 2026 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 1⁄3

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

    Solve: 2x + 10 = 24

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 12cm

    Answer: 16.28cm
  4. 4. Ratio Sharing in a ratio

    Divide 216 in the ratio 2:4:3

    Answer: 48, 96 and 72
  5. 5. Statistics Mean

    Find the mean of: 6, 2, 9, 6

    Answer: 5.75

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