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Cornerstone · Grades 3–5 Keystones #1 26 August 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 26 August 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄12 + 2⁄12

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 5x + 8 = 28

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

    Calculate the hypotenuse when a = 9cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 14.21cm
  4. 4. Ratio Sharing in a ratio

    Share 133 in the ratio 4:3

    Answer: 76 and 57
  5. 5. Statistics Mean

    Calculate the mean of: 50, 14, 49, 43, 36, 28. Give your answer to 2 decimal places

    Answer: 36.67

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