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Cornerstone · Grades 3–5 Keystones #1 5 July 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 5 July 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄9 + 2⁄9

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 5x + 12 = 52

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

    Calculate the hypotenuse when a = 7cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 8.06cm
  4. 4. Ratio Sharing in a ratio

    Divide 125 in the ratio 1:3:1

    Answer: 25, 75 and 25
  5. 5. Statistics Mean

    Calculate the mean of: 30, 8, 38, 49, 19, 7, 48, 29

    Answer: 28.5

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