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Cornerstone · Grades 3–5 Keystones #1 11 July 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 11 July 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 2x - 17 = 11

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 10.44cm
  4. 4. Ratio Sharing in a ratio

    Share 55 in the ratio 1:4

    Answer: 11 and 44
  5. 5. Statistics Mean

    Calculate the mean of: 25, 41, 11, 9, 30, 32, 38. Give your answer to 2 decimal places

    Answer: 26.57

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