In the evening of a certain day, the temperature in Huangshan dropped by 7 degrees Celsius from minus 2 degrees Celsius in the morning. What is the temperature in Huangshan in the evening of that day?
某日傍晚，黄山的气温由上午的零上2摄氏度下降了7摄氏度，这天傍晚黄山的气温是多少摄氏度．
<gadget id="calculator">7 - 2</gadget>
<output>5</output>

<result>5</result>