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Cornerstone · Grades 3–5 Keystones #1 28 June 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 28 June 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 4⁄5

    Answer: 22⁄15
  2. 2. Algebra Two-step equations

    Solve: 4x + 3 = 39

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Divide 162 in the ratio 1:1:4

    Answer: 27, 27 and 108
  5. 5. Statistics Mean

    Find the mean of: 13, 15, 8, 4

    Answer: 10

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