On a certain day in Suzhou, the highest temperature is 8 degrees, and the lowest temperature is -2 degrees. What is the difference between the highest temperature and the lowest temperature on this day?
苏州某日的最高气温8度，最低气温-2度，这天的最高气温与最低气温相差多少度．
<gadget id="calculator">8 - (-2)</gadget>
<output>10</output>

<result>10</result>