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Cornerstone · Grades 3–5 Keystones #1 29 July 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 29 July 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 2⁄6

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 4x + 3 = 31

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

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio Sharing in a ratio

    Divide 225 in the ratio 4:3:2

    Answer: 100, 75 and 50
  5. 5. Statistics Mean

    Find the mean of: 11, 4, 18

    Answer: 11

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