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Cornerstone · Grades 3–5 Keystones #1 11 April 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 11 April 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄6 + 2⁄3

    Answer: 1⁄1
  2. 2. Algebra Two-step equations

    Solve: 5x - 7 = 48

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

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Divide 154 in the ratio 2:1:4

    Answer: 44, 22 and 88
  5. 5. Statistics Mean

    Calculate the mean of: 25, 34, 36, 10, 46, 37, 44, 21. Give your answer to 2 decimal places

    Answer: 31.63

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