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Cornerstone · Grades 3–5 Keystones #1 14 April 2012 Skills week 1 of 7
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Five GCSE retrieval questions · 14 April 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄7 + 7⁄8

    Answer: 97⁄56
  2. 2. Algebra Two-step equations

    Solve: 8x - 8 = 56

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

    Calculate the hypotenuse when a = 12cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 19.21cm
  4. 4. Ratio Sharing in a ratio

    Divide 88 in the ratio 4:3:1

    Answer: 44, 33 and 11
  5. 5. Statistics Mean

    Find the mean of: 17, 9, 19

    Answer: 15

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