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Cornerstone · Grades 3–5 Keystones #1 7 May 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 7 May 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 7⁄12 + 3⁄12

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 6x + 13 = 49

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Divide 96 in the ratio 2:1:1

    Answer: 48, 24 and 24
  5. 5. Statistics Mean

    Find the mean of: 3, 1, 17, 3

    Answer: 6

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