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Cornerstone · Grades 3–5 Keystones #1 24 June 2010 Skills week 1 of 7
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Five GCSE retrieval questions · 24 June 2010 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄6 + 6⁄8

    Answer: 5⁄4
  2. 2. Algebra Two-step equations

    Solve: 4x - 14 = 22

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

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

    Answer: 11.31cm
  4. 4. Ratio Sharing in a ratio

    Divide 75 in the ratio 1:3:1

    Answer: 15, 45 and 15
  5. 5. Statistics Mean

    Find the mean of: 4, 3, 11

    Answer: 6

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