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Cornerstone · Grades 3–5 Keystones #1 26 June 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 26 June 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 2⁄6

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

    Solve: 2x - 19 = -5

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

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

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

    Divide 165 in the ratio 3:4:4

    Answer: 45, 60 and 60
  5. 5. Statistics Mean

    Calculate the mean of: 36, 12, 41, 20, 50, 44. Give your answer to 2 decimal places

    Answer: 33.83

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