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Cornerstone · Grades 3–5 Keystones #1 12 April 2012 Skills week 1 of 7
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Five GCSE retrieval questions · 12 April 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄11 + 2⁄11

    Answer: 5⁄11
  2. 2. Algebra Two-step equations

    Solve: 4x + 10 = 58

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

    Calculate the hypotenuse when a = 12cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 12.65cm
  4. 4. Ratio Sharing in a ratio

    Share 42 in the ratio 3:4

    Answer: 18 and 24
  5. 5. Statistics Mean

    Find the mean of: 5, 18, 4

    Answer: 9

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