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Cornerstone · Grades 3–5 Keystones #1 14 July 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 14 July 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄9 + 1⁄9

    Answer: 7⁄9
  2. 2. Algebra Two-step equations

    Solve: 6x + 7 = 61

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 13.89cm
  4. 4. Ratio Sharing in a ratio

    Divide 90 in the ratio 2:4:3

    Answer: 20, 40 and 30
  5. 5. Statistics Mean

    Calculate the mean of: 43, 49, 50, 38, 10, 41, 40. Give your answer to 2 decimal places

    Answer: 38.71

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