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Cornerstone · Grades 3–5 Keystones #1 24 February 2012 Skills week 1 of 7
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Five GCSE retrieval questions · 24 February 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄11 + 1⁄11

    Answer: 3⁄11
  2. 2. Algebra Two-step equations

    Solve: 6x + 3 = 57

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 13.42cm
  4. 4. Ratio Sharing in a ratio

    Divide 84 in the ratio 4:1:1

    Answer: 56, 14 and 14
  5. 5. Statistics Mean

    Find the mean of: 15, 11, 16, 1, 7

    Answer: 10

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