Liaocheng is a northern city with obvious seasonal changes. The highest temperature in summer is 38 degrees, and the lowest temperature in winter is minus 10 degrees. What is the maximum temperature difference in a year?
聊城属北方城市，四季变化明显，夏季最高气温达38度，冬季气温最低达零下10度，则一年温度差最大是多少度．
<gadget id="calculator">38 - (-10)</gadget>
<output>48</output>

<result>48</result>