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

  1. 1. Number Adding fractions

    Add: 1⁄5 + 4⁄8

    Answer: 7⁄10
  2. 2. Algebra Two-step equations

    Solve: 4x - 14 = 26

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

    Calculate the hypotenuse when a = 8cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 16.12cm
  4. 4. Ratio Sharing in a ratio

    Share 40 in the ratio 1:3

    Answer: 10 and 30
  5. 5. Statistics Mean

    Calculate the mean of: 42, 42, 35, 34, 7, 49, 47, 17. Give your answer to 2 decimal places

    Answer: 34.13

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