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Cornerstone · Grades 3–5 Keystones #1 21 December 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 21 December 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 2⁄6

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 6x + 9 = 33

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

    Calculate the hypotenuse when a = 12cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 13.42cm
  4. 4. Ratio Sharing in a ratio

    Divide 126 in the ratio 1:3:2

    Answer: 21, 63 and 42
  5. 5. Statistics Mean

    Calculate the mean of: 39, 37, 11, 27, 49, 37, 21. Give your answer to 2 decimal places

    Answer: 31.57

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