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Cornerstone · Grades 3–5 Keystones #1 13 May 2010 Skills week 1 of 7
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Five GCSE retrieval questions · 13 May 2010 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 3⁄8

    Answer: 9⁄8
  2. 2. Algebra Two-step equations

    Solve: 4x + 14 = 58

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 9.85cm
  4. 4. Ratio Sharing in a ratio

    Share 36 in the ratio 2:1

    Answer: 24 and 12
  5. 5. Statistics Mean

    Find the mean of: 14, 3, 6, 13, 19

    Answer: 11

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