The highest temperature in a city in one day is 2°C, and the lowest temperature is -3°C, what is the temperature difference in that day?
某城市一天的最高气温是2℃，最低气温是-3℃，这天的温差是多少℃．
<gadget id="calculator">3 - (-2)</gadget>
<output>5</output>

<result>5</result>