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Cornerstone · Grades 3–5 Keystones #1 14 April 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 14 April 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 1⁄6

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 7x + 8 = 85

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 12.81cm
  4. 4. Ratio Sharing in a ratio

    Share 114 in the ratio 1:2

    Answer: 38 and 76
  5. 5. Statistics Mean

    Calculate the mean of: 24, 43, 20, 32, 39, 39. Give your answer to 2 decimal places

    Answer: 32.83

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