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

  1. 1. Number Adding fractions

    Calculate: 2⁄10 + 5⁄10

    Answer: 7⁄10
  2. 2. Algebra Two-step equations

    Solve: 7x - 6 = 22

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

    Calculate the hypotenuse when a = 6cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 15.23cm
  4. 4. Ratio Sharing in a ratio

    Divide 140 in the ratio 2:1:4

    Answer: 40, 20 and 80
  5. 5. Statistics Mean

    Find the mean of: 14, 4, 13, 3, 6

    Answer: 8

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