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Cornerstone · Grades 3–5 Keystones #1 30 December 2011 Skills week 1 of 7
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Five GCSE retrieval questions · 30 December 2011 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 3⁄6

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

    Solve: 4x - 11 = 25

    Answer: x = 9
  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 56 in the ratio 3:1

    Answer: 42 and 14
  5. 5. Statistics Mean

    Find the mean of: 10, 7, 16, 7

    Answer: 10

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