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Cornerstone · Grades 3–5 Keystones #1 16 August 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 16 August 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄11 + 1⁄11

    Answer: 9⁄11
  2. 2. Algebra Two-step equations

    Solve: 7x - 5 = 44

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

    Calculate the hypotenuse when a = 9cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 12.04cm
  4. 4. Ratio Sharing in a ratio

    Divide 216 in the ratio 1:4:3

    Answer: 27, 108 and 81
  5. 5. Statistics Mean

    Find the mean of: 6, 15, 16, 7

    Answer: 11

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