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Cornerstone · Grades 3–5 Keystones #1 4 February 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 4 February 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄11 + 5⁄11

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

    Solve: 3x - 18 = -3

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 6.4cm
  4. 4. Ratio Sharing in a ratio

    Share 65 in the ratio 3:2

    Answer: 39 and 26
  5. 5. Statistics Mean

    Find the mean of: 5, 11, 17

    Answer: 11

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