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Cornerstone · Grades 3–5 Keystones #1 25 July 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 25 July 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄5 + 5⁄6

    Answer: 31⁄30
  2. 2. Algebra Two-step equations

    Solve: 2x + 10 = 24

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

    Calculate the hypotenuse when a = 7cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 14.76cm
  4. 4. Ratio Sharing in a ratio

    Divide 252 in the ratio 2:4:3

    Answer: 56, 112 and 84
  5. 5. Statistics Mean

    Find the mean of: 4, 17, 3, 20

    Answer: 11

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