If the temperature in a certain city is -8°C to 2°C today, what is the difference between the highest temperature and the lowest temperature in °C?
某市今天气温为-8℃～2℃，则最高气温与最低气温相差多少℃．
<gadget id="calculator">2 - (-8)</gadget>
<output>10</output>

<result>10</result>