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Cornerstone · Grades 3–5 Keystones #1 13 June 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 13 June 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄7 + 1⁄7

    Answer: 4⁄7
  2. 2. Algebra Two-step equations

    Solve: 7x - 7 = 28

    Answer: x = 5
  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

    Divide 80 in the ratio 1:1:2

    Answer: 20, 20 and 40
  5. 5. Statistics Mean

    Find the mean of: 14, 12, 3, 5, 11

    Answer: 9

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