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Cornerstone · Grades 3–5 Keystones #1 14 April 2025 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 14 April 2025 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄7 + 3⁄6

    Answer: 19⁄14
  2. 2. Algebra Two-step equations

    Solve: 4x - 10 = 38

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

    Calculate the hypotenuse when a = 6cm and b = 14cm

    Answer: 15.23cm
  4. 4. Ratio Sharing in a ratio

    Share 28 in the ratio 1:3

    Answer: 7 and 21
  5. 5. Statistics Mean

    Find the mean of: 14, 3, 14

    Answer: 10.333333333333

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