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Cornerstone · Grades 3–5 Keystones #295 22 October 2026 (today) Skills week 1 of 7
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Five GCSE retrieval questions · 22 October 2026 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄7 + 2⁄4

    Answer: 13⁄14
  2. 2. Algebra Two-step equations

    Solve: 3x + 13 = 46

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 12cm

    Answer: 15.62cm
  4. 4. Ratio Sharing in a ratio

    Share 48 in the ratio 3:1

    Answer: 36 and 12
  5. 5. Statistics Mean

    Calculate the mean of: 26, 15, 29, 9, 6, 17, 40

    Answer: 20.3

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