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Cornerstone · Grades 3–5 Keystones #1 23 July 2011 Skills week 1 of 7
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Five GCSE retrieval questions · 23 July 2011 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 2⁄6

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

    Solve: 4x + 8 = 44

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 13.6cm
  4. 4. Ratio Sharing in a ratio

    Divide 176 in the ratio 3:1:4

    Answer: 66, 22 and 88
  5. 5. Statistics Mean

    Calculate the mean of: 26, 11, 45, 5, 43, 43. Give your answer to 2 decimal places

    Answer: 28.83

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