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Cornerstone · Grades 3–5 Keystones #1 17 December 2015 Skills week 1 of 7
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Five GCSE retrieval questions · 17 December 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 + 6 = 55

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio Sharing in a ratio

    Share 56 in the ratio 4:3

    Answer: 32 and 24
  5. 5. Statistics Mean

    Calculate the mean of: 26, 13, 44, 10, 35, 39, 23, 36

    Answer: 28.25

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