One day, the temperature in Beijing is -80, and the temperature in Shunchang is +50. How much is the temperature difference between the two places?
某天北京的气温是-80，顺昌的气温是+50，两地的气温相差多少
<gadget id="calculator">50 - (-80)</gadget>
<output>130</output>

<result>130</result>