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Cornerstone · Grades 3–5 Keystones #1 25 November 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 25 November 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄7 + 1⁄4

    Answer: 27⁄28
  2. 2. Algebra Two-step equations

    Solve: 5x + 14 = 44

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Divide 182 in the ratio 1:3:3

    Answer: 26, 78 and 78
  5. 5. Statistics Mean

    Find the mean of: 14, 13, 2, 5

    Answer: 8.5

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