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Cornerstone · Grades 3–5 Keystones #1 4 November 2024 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 November 2024 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄7 + 2⁄4

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

    Solve: 4x + 10 = 42

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 13cm

    Answer: 15.81cm
  4. 4. Ratio Sharing in a ratio

    Divide 120 in the ratio 1:1:4

    Answer: 20, 20 and 80
  5. 5. Statistics Mean

    Calculate the mean of: 17, 34, 10, 28, 15, 29, 47

    Answer: 25.7

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