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Cornerstone · Grades 3–5 Keystones #1 30 December 2013 Skills week 1 of 7
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Five GCSE retrieval questions · 30 December 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄10 + 4⁄10

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 7x - 16 = 54

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 7.62cm
  4. 4. Ratio Sharing in a ratio

    Divide 110 in the ratio 1:2:2

    Answer: 22, 44 and 44
  5. 5. Statistics Mean

    Calculate the mean of: 30, 13, 14, 40, 29, 35, 44, 30. Give your answer to 2 decimal places

    Answer: 29.38

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