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Cornerstone · Grades 3–5 Keystones #97 7 April 2026 Skills week 1 of 7
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Five GCSE retrieval questions · 7 April 2026 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄12 + 1⁄12

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 5x + 4 = 39

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

    Calculate the hypotenuse when a = 9cm and b = 7cm

    Answer: 11.4cm
  4. 4. Ratio Sharing in a ratio

    Share 108 in the ratio 1:2

    Answer: 36 and 72
  5. 5. Statistics Mean

    Calculate the mean of: 46, 40, 41, 40, 38, 22, 31, 22

    Answer: 35

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