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Cornerstone · Grades 3–5 Keystones #1 22 November 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 November 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄8 + 6⁄7

    Answer: 19⁄14
  2. 2. Algebra Two-step equations

    Solve: 2x - 16 = 6

    Answer: x = 11
  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

    Divide 240 in the ratio 2:1:1

    Answer: 120, 60 and 60
  5. 5. Statistics Mean

    Find the mean of: 3, 8, 4

    Answer: 5

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