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Cornerstone · Grades 3–5 Keystones #1 23 April 2012 Skills week 1 of 7
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Five GCSE retrieval questions · 23 April 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 3⁄5

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

    Solve: 2x + 3 = 23

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 11.4cm
  4. 4. Ratio Sharing in a ratio

    Divide 252 in the ratio 4:3:2

    Answer: 112, 84 and 56
  5. 5. Statistics Mean

    Find the mean of: 9, 10, 14

    Answer: 11

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