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Cornerstone · Grades 3–5 Keystones #1 3 June 2012 Skills week 1 of 7
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Five GCSE retrieval questions · 3 June 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄11 + 5⁄11

    Answer: 8⁄11
  2. 2. Algebra Two-step equations

    Solve: 6x - 16 = 56

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Divide 200 in the ratio 1:2:2

    Answer: 40, 80 and 80
  5. 5. Statistics Mean

    Calculate the mean of: 44, 19, 42, 36, 17, 25, 37, 31. Give your answer to 2 decimal places

    Answer: 31.38

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