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Cornerstone · Grades 3–5 Keystones #1 3 April 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 April 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄11 + 6⁄11

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

    Solve: 6x - 12 = 36

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 15.81cm
  4. 4. Ratio Sharing in a ratio

    Divide 208 in the ratio 3:1:4

    Answer: 78, 26 and 104
  5. 5. Statistics Mean

    Calculate the mean of: 33, 49, 19, 26, 43, 23, 28. Give your answer to 2 decimal places

    Answer: 31.57

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