There are 300 tons of goods in the warehouse, and 48.5 tons were transported on the first day, which was 18.4 tons less than that on the second day. After two days, how many tons of goods were missing in the warehouse.
仓库里有300吨货物，第一天运走48.5吨，比第二天少运18.4吨，两天后，仓库里少了多少吨货物．
<gadget id="calculator">48.5 + 18.4</gadget>
<output>66.9</output>

<gadget id="calculator">48.5 + 66.9</gadget>
<output>115.4</output>

<result>115.4</result>