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Cornerstone · Grades 3–5 Keystones #1 28 March 2012 Skills week 1 of 7
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Five GCSE retrieval questions · 28 March 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 2⁄7

    Answer: 29⁄28
  2. 2. Algebra Two-step equations

    Solve: 8x - 8 = 96

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  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: 12, 5, 1

    Answer: 6

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