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Cornerstone · Grades 3–5 Keystones #1 26 September 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 26 September 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 4x - 14 = 46

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.3cm
  4. 4. Ratio Sharing in a ratio

    Divide 52 in the ratio 1:1:2

    Answer: 13, 13 and 26
  5. 5. Statistics Mean

    Calculate the mean of: 13, 17, 8, 8, 8, 32, 35. Give your answer to 2 decimal places

    Answer: 17.29

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