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Cornerstone · Grades 3–5 Keystones #1 29 February 2012 Skills week 1 of 7
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Five GCSE retrieval questions · 29 February 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 7⁄10 + 1⁄10

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

    Solve: 5x - 11 = 59

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 7cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 13.04cm
  4. 4. Ratio Sharing in a ratio

    Divide 196 in the ratio 2:2:3

    Answer: 56, 56 and 84
  5. 5. Statistics Mean

    Calculate the mean of: 32, 39, 20, 50, 7, 10, 24

    Answer: 26

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