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Cornerstone · Grades 3–5 Keystones #1 26 July 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 26 July 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 5x + 3 = 38

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

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Divide 200 in the ratio 3:3:2

    Answer: 75, 75 and 50
  5. 5. Statistics Mean

    Find the mean of: 7, 6, 18, 10, 4

    Answer: 9

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