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Cornerstone · Grades 3–5 Keystones #1 25 July 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 25 July 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄7 + 4⁄5

    Answer: 48⁄35
  2. 2. Algebra Two-step equations

    Solve: 4x + 14 = 50

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

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Share 40 in the ratio 1:4

    Answer: 8 and 32
  5. 5. Statistics Mean

    Calculate the mean of: 49, 33, 27, 26, 46, 15, 35

    Answer: 33

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