Five referees give a score to a singer, and the average score is 9.58 points if the highest score and the lowest score are removed; the average score is 9.46 points if the highest score is removed; the average score is 9.66 points if the lowest score is removed. What is the difference between the singer's highest score and the lowest score?
五位裁判员给一位歌唱演员评分，去掉一个最高分和一个最低分平均得9.58分；去掉一个最高分平均得9.46分；去掉一个最低分平均得9.66分．这名歌唱演员的最高分与最低分相差多少分．
<gadget id="calculator">9.66 * 4</gadget>
<output>38.64</output>

<gadget id="calculator">9.58 * 3</gadget>
<output>28.74</output>

<gadget id="calculator">38.64 - 28.74</gadget>
<output>9.9</output>

<gadget id="calculator">9.46 * 4</gadget>
<output>37.84</output>

<gadget id="calculator">37.84 - 28.74</gadget>
<output>9.1</output>

<gadget id="calculator">9.9 - 9.1</gadget>
<output>0.8</output>

<result>0.8</result>