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Cornerstone · Grades 3–5 Keystones #1 19 July 2011 Skills week 1 of 7
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Five GCSE retrieval questions · 19 July 2011 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄5 + 1⁄5

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

    Solve: 4x + 12 = 60

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

    Calculate the hypotenuse when a = 9cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 12.73cm
  4. 4. Ratio Sharing in a ratio

    Divide 119 in the ratio 3:1:3

    Answer: 51, 17 and 51
  5. 5. Statistics Mean

    Find the mean of: 7, 6, 5

    Answer: 6

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