Five referees give a score to an athlete. The average score after removing the highest score and the lowest score is 8.58 points, the average score after removing the highest score is 8.46 points, and the average score after removing the lowest score is 8.66 points. What is the difference between the athlete's highest and lowest scores?
五个裁判员给一名运动员评分，去掉一个最高分和一个最低分后的平均分是8.58分，去掉一个最高分后的平均分是8.46分，去掉一个最低分后的平均分是8.66分．这个运动员的最高分和最低分相差多少分？
<gadget id="calculator">8.66 * 4</gadget>
<output>34.64</output>

<gadget id="calculator">8.58 * 3</gadget>
<output>25.74</output>

<gadget id="calculator">34.64 - 25.74</gadget>
<output>8.9</output>

<gadget id="calculator">8.46 * 4</gadget>
<output>33.84</output>

<gadget id="calculator">33.84 - 25.74</gadget>
<output>8.1</output>

<gadget id="calculator">8.9 - 8.1</gadget>
<output>0.8</output>

<result>0.8</result>