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Cornerstone · Grades 3–5 Keystones #1 8 June 2011 Skills week 1 of 7
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Five GCSE retrieval questions · 8 June 2011 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄8 + 4⁄8

    Answer: 5⁄8
  2. 2. Algebra Two-step equations

    Solve: 4x - 10 = 46

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 8.94cm
  4. 4. Ratio Sharing in a ratio

    Divide 162 in the ratio 3:1:2

    Answer: 81, 27 and 54
  5. 5. Statistics Mean

    Calculate the mean of: 8, 35, 30, 48, 9, 24. Give your answer to 2 decimal places

    Answer: 25.67

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