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Cornerstone · Grades 3–5 Keystones #1 14 September 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 14 September 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄5 + 5⁄6

    Answer: 31⁄30
  2. 2. Algebra Two-step equations

    Solve: 4x - 14 = 14

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 11.7cm
  4. 4. Ratio Sharing in a ratio

    Share 32 in the ratio 3:1

    Answer: 24 and 8
  5. 5. Statistics Mean

    Calculate the mean of: 8, 16, 48, 27, 11, 48. Give your answer to 2 decimal places

    Answer: 26.33

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