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Cornerstone · Grades 3–5 Keystones #1 25 January 2013 Skills week 1 of 7
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Five GCSE retrieval questions · 25 January 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 2⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 2x - 16 = 10

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Share 36 in the ratio 2:1

    Answer: 24 and 12
  5. 5. Statistics Mean

    Calculate the mean of: 50, 27, 26, 26, 35, 40, 49. Give your answer to 2 decimal places

    Answer: 36.14

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