The students of Guangming Elementary School are doing military training. During the march at night, "First Company" walked 2,200 meters, and "Second Company" walked 150 meters less than "First Company". So how many meters did "First Company" and "Er Company" march together?
光明小学的学生进行军训，在晚上的行军中，"一连"步行了2200米，"二连"比"一连"要少行150米，那么"一连"和"二连"共行军多少米？
<gadget id="calculator">2_200 - 150</gadget>
<output>2_050</output>

<gadget id="calculator">2_050 + 2_200</gadget>
<output>4_250</output>

<result>4_250</result>