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Cornerstone · Grades 3–5 Keystones #1 13 July 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 13 July 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄8 + 4⁄7

    Answer: 23⁄28
  2. 2. Algebra Two-step equations

    Solve: 6x + 8 = 32

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

    Calculate the hypotenuse when a = 9cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 10.82cm
  4. 4. Ratio Sharing in a ratio

    Share 91 in the ratio 3:4

    Answer: 39 and 52
  5. 5. Statistics Mean

    Find the mean of: 6, 17, 6, 7, 19

    Answer: 11

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