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Cornerstone · Grades 3–5 Keystones #1 11 December 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 11 December 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄11 + 3⁄11

    Answer: 9⁄11
  2. 2. Algebra Two-step equations

    Solve: 5x - 16 = 54

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 12.65cm
  4. 4. Ratio Sharing in a ratio

    Divide 132 in the ratio 4:1:1

    Answer: 88, 22 and 22
  5. 5. Statistics Mean

    Calculate the mean of: 32, 21, 23, 16, 23, 29

    Answer: 24

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