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Cornerstone · Grades 3–5 Keystones #1 24 July 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 24 July 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 7⁄11 + 3⁄11

    Answer: 10⁄11
  2. 2. Algebra Two-step equations

    Solve: 3x - 15 = 21

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

    Calculate the hypotenuse when a = 6cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 8.49cm
  4. 4. Ratio Sharing in a ratio

    Divide 192 in the ratio 1:3:4

    Answer: 24, 72 and 96
  5. 5. Statistics Mean

    Calculate the mean of: 34, 45, 32, 44, 47, 44, 41, 34. Give your answer to 2 decimal places

    Answer: 40.13

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