If the highest temperature in a certain area on a certain day is 5°C, and the lowest temperature is -3°C, what is the temperature difference in this area on this day?
某地区某一天的最高气温是5℃，最低气温是-3℃，那么这个地区这一天的温差是多少．
<gadget id="calculator">5 - (-3)</gadget>
<output>8</output>

<result>8</result>