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

  1. 1. Number Adding fractions

    Calculate: 5⁄11 + 4⁄11

    Answer: 9⁄11
  2. 2. Algebra Two-step equations

    Solve: 3x - 11 = 34

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio Sharing in a ratio

    Share 84 in the ratio 2:1

    Answer: 56 and 28
  5. 5. Statistics Mean

    Find the mean of: 3, 9, 18

    Answer: 10

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