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Cornerstone · Grades 3–5 Keystones #1 24 May 2013 Skills week 1 of 7
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Five GCSE retrieval questions · 24 May 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄5 + 2⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 7x - 8 = 48

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

    Calculate the hypotenuse when a = 12cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 18.44cm
  4. 4. Ratio Sharing in a ratio

    Divide 135 in the ratio 3:4:2

    Answer: 45, 60 and 30
  5. 5. Statistics Mean

    Calculate the mean of: 6, 27, 17, 25, 48, 46, 22, 35

    Answer: 28.25

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