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Cornerstone · Grades 3–5 Keystones #1 6 February 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 6 February 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄12 + 6⁄12

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 4x + 14 = 46

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

    Calculate the hypotenuse when a = 4cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 8.06cm
  4. 4. Ratio Sharing in a ratio

    Divide 70 in the ratio 2:4:1

    Answer: 20, 40 and 10
  5. 5. Statistics Mean

    Find the mean of: 2, 11, 14

    Answer: 9

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