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Cornerstone · Grades 3–5 Keystones #1 27 November 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 November 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄8 + 4⁄6

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 6x + 9 = 51

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Share 70 in the ratio 1:4

    Answer: 14 and 56
  5. 5. Statistics Mean

    Find the mean of: 3, 10, 6, 9

    Answer: 7

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