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Cornerstone · Grades 3–5 Keystones #1 12 March 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 12 March 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 3⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 2x + 3 = 11

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 13.45cm
  4. 4. Ratio Sharing in a ratio

    Share 90 in the ratio 1:4

    Answer: 18 and 72
  5. 5. Statistics Mean

    Calculate the mean of: 38, 22, 14, 10, 17, 27. Give your answer to 2 decimal places

    Answer: 21.33

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