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Cornerstone · Grades 3–5 Keystones #1 15 June 2015 Skills week 1 of 7
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Five GCSE retrieval questions · 15 June 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄10 + 4⁄10

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 2x + 3 = 27

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 6.4cm
  4. 4. Ratio Sharing in a ratio

    Divide 230 in the ratio 2:2:1

    Answer: 92, 92 and 46
  5. 5. Statistics Mean

    Calculate the mean of: 28, 13, 36, 18, 45, 37, 41. Give your answer to 2 decimal places

    Answer: 31.14

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