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Cornerstone · Grades 3–5 Keystones #1 29 May 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 29 May 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄6 + 1⁄6

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

    Solve: 7x - 11 = 94

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 12.53cm
  4. 4. Ratio Sharing in a ratio

    Divide 80 in the ratio 2:1:1

    Answer: 40, 20 and 20
  5. 5. Statistics Mean

    Find the mean of: 17, 2, 9, 14, 3

    Answer: 9

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