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Cornerstone · Grades 3–5 Keystones #1 19 July 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 19 July 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄7 + 5⁄7

    Answer: 6⁄7
  2. 2. Algebra Two-step equations

    Solve: 7x - 15 = 13

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 7cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio Sharing in a ratio

    Divide 91 in the ratio 3:2:2

    Answer: 39, 26 and 26
  5. 5. Statistics Mean

    Find the mean of: 18, 8, 23, 11

    Answer: 15

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