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Cornerstone · Grades 3–5 Keystones #296 23 October 2026 (today) Skills week 1 of 7
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Five GCSE retrieval questions · 23 October 2026 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄5 + 2⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 5x - 6 = 64

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 5cm

    Answer: 5.83cm
  4. 4. Ratio Sharing in a ratio

    Share 36 in the ratio 2:1

    Answer: 24 and 12
  5. 5. Statistics Mean

    Find the mean of: 7, 18, 19

    Answer: 14.666666666667

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