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

  1. 1. Number Adding fractions

    Add: 2⁄6 + 2⁄8

    Answer: 7⁄12
  2. 2. Algebra Two-step equations

    Solve: 5x + 3 = 33

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Share 30 in the ratio 4:1

    Answer: 24 and 6
  5. 5. Statistics Mean

    Find the mean of: 6, 17, 7, 14

    Answer: 11

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