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Cornerstone · Grades 3–5 Keystones #1 11 June 2011 Skills week 1 of 7
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Five GCSE retrieval questions · 11 June 2011 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 2⁄6

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

    Solve: 7x - 10 = 74

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 7cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio Sharing in a ratio

    Divide 112 in the ratio 4:1:2

    Answer: 64, 16 and 32
  5. 5. Statistics Mean

    Calculate the mean of: 45, 29, 45, 37, 37, 31. Give your answer to 2 decimal places

    Answer: 37.33

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