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Cornerstone · Grades 3–5 Keystones #1 26 February 2019 Skills week 1 of 7
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Five GCSE retrieval questions · 26 February 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄7 + 4⁄7

    Answer: 6⁄7
  2. 2. Algebra Two-step equations

    Solve: 2x + 12 = 26

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 8cm

    Answer: 8.94cm
  4. 4. Ratio Sharing in a ratio

    Share 75 in the ratio 3:2

    Answer: 45 and 30
  5. 5. Statistics Mean

    Find the mean of: 20, 2, 14, 4

    Answer: 10

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