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

  1. 1. Number Adding fractions

    Calculate: 3⁄11 + 4⁄11

    Answer: 7⁄11
  2. 2. Algebra Two-step equations

    Solve: 6x - 19 = 35

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 14cm

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Share 57 in the ratio 1:2

    Answer: 19 and 38
  5. 5. Statistics Mean

    Find the mean of: 18, 3, 10, 16, 4

    Answer: 10.2

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