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Cornerstone · Grades 3–5 Keystones #1 29 October 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 29 October 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄8 + 1⁄5

    Answer: 33⁄40
  2. 2. Algebra Two-step equations

    Solve: 7x - 19 = 16

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Share 85 in the ratio 2:3

    Answer: 34 and 51
  5. 5. Statistics Mean

    Find the mean of: 14, 6, 1

    Answer: 7

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