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Cornerstone · Grades 3–5 Keystones #1 29 April 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 29 April 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄7 + 3⁄7

    Answer: 5⁄7
  2. 2. Algebra Two-step equations

    Solve: 2x + 4 = 10

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

    Calculate the hypotenuse when a = 7cm and b = 15cm

    Answer: 16.55cm
  4. 4. Ratio Sharing in a ratio

    Divide 140 in the ratio 1:2:2

    Answer: 28, 56 and 56
  5. 5. Statistics Mean

    Calculate the mean of: 26, 28, 14, 10, 50, 40, 14

    Answer: 26

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