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Cornerstone · Grades 3–5 Keystones #1 12 June 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 12 June 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄11 + 4⁄11

    Answer: 5⁄11
  2. 2. Algebra Two-step equations

    Solve: 5x + 6 = 31

    Answer: x = 5
  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

    Divide 290 in the ratio 3:4:3

    Answer: 87, 116 and 87
  5. 5. Statistics Mean

    Calculate the mean of: 46, 5, 22, 32, 46, 35, 29, 25

    Answer: 30

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