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Cornerstone · Grades 3–5 Keystones #1 28 September 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 28 September 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄8 + 4⁄7

    Answer: 23⁄28
  2. 2. Algebra Two-step equations

    Solve: 3x + 8 = 44

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Divide 162 in the ratio 2:1:3

    Answer: 54, 27 and 81
  5. 5. Statistics Mean

    Find the mean of: 11, 6, 5, 6

    Answer: 7

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