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Cornerstone · Grades 3–5 Keystones #1 31 May 2015 Skills week 1 of 7
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Five GCSE retrieval questions · 31 May 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄9 + 2⁄9

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

    Solve: 7x + 14 = 98

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.52cm
  4. 4. Ratio Sharing in a ratio

    Divide 261 in the ratio 4:3:2

    Answer: 116, 87 and 58
  5. 5. Statistics Mean

    Calculate the mean of: 11, 14, 35, 49, 16, 10

    Answer: 22.5

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