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

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 3⁄6

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

    Solve: 7x + 4 = 60

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 15.23cm
  4. 4. Ratio Sharing in a ratio

    Divide 168 in the ratio 2:2:3

    Answer: 48, 48 and 72
  5. 5. Statistics Mean

    Calculate the mean of: 50, 26, 25, 39, 25, 9, 24, 38

    Answer: 29.5

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