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Cornerstone · Grades 3–5 Keystones #1 31 March 2013 Skills week 1 of 7
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Five GCSE retrieval questions · 31 March 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 7⁄11 + 2⁄11

    Answer: 9⁄11
  2. 2. Algebra Two-step equations

    Solve: 7x - 9 = 19

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 7.07cm
  4. 4. Ratio Sharing in a ratio

    Share 105 in the ratio 3:4

    Answer: 45 and 60
  5. 5. Statistics Mean

    Find the mean of: 12, 19, 11, 14

    Answer: 14

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