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Cornerstone · Grades 3–5 Keystones #1 6 June 2010 Skills week 1 of 7
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Five GCSE retrieval questions · 6 June 2010 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄9 + 2⁄9

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

    Solve: 3x + 13 = 37

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 9.43cm
  4. 4. Ratio Sharing in a ratio

    Divide 96 in the ratio 3:1:2

    Answer: 48, 16 and 32
  5. 5. Statistics Mean

    Find the mean of: 19, 5, 12

    Answer: 12

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