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Cornerstone · Grades 3–5 Keystones #197 16 July 2026 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 July 2026 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄6 + 1⁄6

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

    Solve: 7x + 4 = 88

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Share 63 in the ratio 3:4

    Answer: 27 and 36
  5. 5. Statistics Mean

    Find the mean of: 8, 11, 7, 4

    Answer: 7.5

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