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Cornerstone · Grades 3–5 Keystones #1 26 June 2011 Skills week 1 of 7
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Five GCSE retrieval questions · 26 June 2011 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄6 + 2⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 6x + 8 = 26

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

    Calculate the hypotenuse when a = 8cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 14.42cm
  4. 4. Ratio Sharing in a ratio

    Divide 120 in the ratio 2:2:1

    Answer: 48, 48 and 24
  5. 5. Statistics Mean

    Calculate the mean of: 5, 33, 38, 20, 44, 44. Give your answer to 2 decimal places

    Answer: 30.67

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