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Cornerstone · Grades 3–5 Keystones #1 30 July 2012 Skills week 1 of 7
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Five GCSE retrieval questions · 30 July 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 2⁄3

    Answer: 17⁄12
  2. 2. Algebra Two-step equations

    Solve: 8x - 12 = 20

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 9.43cm
  4. 4. Ratio Sharing in a ratio

    Divide 133 in the ratio 2:3:2

    Answer: 38, 57 and 38
  5. 5. Statistics Mean

    Find the mean of: 15, 16, 2

    Answer: 11

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