According to the forecast of the Meteorological Observatory: There will be light snowfall in Beijing on Friday, and the temperature will be -8°C to 2°C. So, what is the difference between the highest temperature and the lowest temperature on Friday?
据气象台预报：北京周五有小雪，气温-8℃～2℃．那么，周五的最高气温和最低气温相差多少℃．
<gadget id="calculator">2 - (-8)</gadget>
<output>10</output>

<result>10</result>