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Cornerstone · Grades 3–5 Keystones #1 17 July 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 17 July 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄11 + 6⁄11

    Answer: 10⁄11
  2. 2. Algebra Two-step equations

    Solve: 5x + 9 = 59

    Answer: x = 10
  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

    Divide 184 in the ratio 1:1:2

    Answer: 46, 46 and 92
  5. 5. Statistics Mean

    Calculate the mean of: 10, 29, 12, 24, 9, 34, 23. Give your answer to 2 decimal places

    Answer: 20.14

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