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Cornerstone · Grades 3–5 Keystones #1 15 July 2015 Skills week 1 of 7
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Five GCSE retrieval questions · 15 July 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 3⁄6

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

    Solve: 7x - 16 = 26

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 7.81cm
  4. 4. Ratio Sharing in a ratio

    Share 72 in the ratio 1:2

    Answer: 24 and 48
  5. 5. Statistics Mean

    Calculate the mean of: 22, 47, 23, 22, 10, 48, 22, 43. Give your answer to 2 decimal places

    Answer: 29.63

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