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Cornerstone · Grades 3–5 Keystones #1 22 July 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 22 July 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄5 + 4⁄6

    Answer: 22⁄15
  2. 2. Algebra Two-step equations

    Solve: 6x + 11 = 77

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Share 91 in the ratio 3:4

    Answer: 39 and 52
  5. 5. Statistics Mean

    Calculate the mean of: 14, 40, 30, 12, 13, 8, 40. Give your answer to 2 decimal places

    Answer: 22.43

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