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Cornerstone · Grades 3–5 Keystones #1 19 June 2011 Skills week 1 of 7
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Five GCSE retrieval questions · 19 June 2011 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄8 + 1⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 4x - 19 = 9

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 8.06cm
  4. 4. Ratio Sharing in a ratio

    Share 65 in the ratio 1:4

    Answer: 13 and 52
  5. 5. Statistics Mean

    Find the mean of: 2, 4, 17, 14, 13

    Answer: 10

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