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Cornerstone · Grades 3–5 Keystones #1 19 April 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 19 April 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄5 + 2⁄5

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

    Solve: 6x - 15 = 75

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 18.6cm
  4. 4. Ratio Sharing in a ratio

    Divide 115 in the ratio 2:2:1

    Answer: 46, 46 and 23
  5. 5. Statistics Mean

    Calculate the mean of: 6, 27, 18, 17, 44, 7, 35, 27. Give your answer to 2 decimal places

    Answer: 22.63

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