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Cornerstone · Grades 3–5 Keystones #1 25 May 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 25 May 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 5⁄8

    Answer: 31⁄24
  2. 2. Algebra Two-step equations

    Solve: 7x - 9 = 82

    Answer: x = 13
  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

    Share 18 in the ratio 1:2

    Answer: 6 and 12
  5. 5. Statistics Mean

    Calculate the mean of: 33, 32, 28, 17, 33, 8. Give your answer to 2 decimal places

    Answer: 25.17

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