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Cornerstone · Grades 3–5 Keystones #1 10 June 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 10 June 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄7 + 4⁄7

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

    Solve: 6x - 11 = 49

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio Sharing in a ratio

    Divide 152 in the ratio 3:3:2

    Answer: 57, 57 and 38
  5. 5. Statistics Mean

    Find the mean of: 4, 7, 16, 9

    Answer: 9

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