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Cornerstone · Grades 3–5 Keystones #1 9 January 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 9 January 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄9 + 2⁄9

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 4x + 9 = 33

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

    Calculate the hypotenuse when a = 3cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Divide 232 in the ratio 1:3:4

    Answer: 29, 87 and 116
  5. 5. Statistics Mean

    Calculate the mean of: 7, 29, 16, 16, 47, 26

    Answer: 23.5

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