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

  1. 1. Number Adding fractions

    Calculate: 4⁄11 + 5⁄11

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

    Solve: 4x - 13 = 11

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

    Calculate the hypotenuse when a = 7cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 12.21cm
  4. 4. Ratio Sharing in a ratio

    Share 45 in the ratio 1:4

    Answer: 9 and 36
  5. 5. Statistics Mean

    Find the mean of: 4, 16, 3, 9

    Answer: 8

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