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Cornerstone · Grades 3–5 Keystones #1 27 July 2010 Skills week 1 of 7
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Five GCSE retrieval questions · 27 July 2010 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 3⁄8

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

    Solve: 3x + 13 = 46

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

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 52 in the ratio 1:3

    Answer: 13 and 39
  5. 5. Statistics Mean

    Find the mean of: 4, 16, 19

    Answer: 13

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