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Cornerstone · Grades 3–5 Keystones #1 28 February 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 28 February 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄6 + 4⁄5

    Answer: 17⁄15
  2. 2. Algebra Two-step equations

    Solve: 4x - 14 = 26

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 7cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 13.04cm
  4. 4. Ratio Sharing in a ratio

    Share 133 in the ratio 3:4

    Answer: 57 and 76
  5. 5. Statistics Mean

    Calculate the mean of: 15, 6, 6, 27, 50, 9, 34, 46. Give your answer to 2 decimal places

    Answer: 24.13

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