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Cornerstone · Grades 3–5 Keystones #1 2 May 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 May 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄9 + 2⁄9

    Answer: 8⁄9
  2. 2. Algebra Two-step equations

    Solve: 3x + 4 = 37

    Answer: x = 11
  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 36 in the ratio 2:1

    Answer: 24 and 12
  5. 5. Statistics Mean

    Find the mean of: 9, 9, 16, 4, 12

    Answer: 10

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