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Cornerstone · Grades 3–5 Keystones #1 30 December 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 30 December 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄7 + 1⁄7

    Answer: 3⁄7
  2. 2. Algebra Two-step equations

    Solve: 3x + 14 = 44

    Answer: x = 10
  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

    Divide 330 in the ratio 4:4:3

    Answer: 120, 120 and 90
  5. 5. Statistics Mean

    Calculate the mean of: 28, 9, 44, 24, 15, 28, 25, 22. Give your answer to 2 decimal places

    Answer: 24.38

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