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Cornerstone · Grades 3–5 Keystones #1 20 November 2024 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 20 November 2024 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 3⁄4

    Answer: 13⁄12
  2. 2. Algebra Two-step equations

    Solve: 5x + 9 = 54

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics Mean

    Calculate the mean of: 15, 8, 8, 35, 19, 27, 49

    Answer: 23

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