A garment factory has 1200 meters of cloth, and first makes 180 sets of adult clothing, each with 5 meters of cloth. The rest are made into children's clothing. Each set uses 3 meters of cloth, how many sets of children's clothing can be made?
某服装厂有布1200米，先做成人服装180套，每套用布5米．剩下的做儿童服装．每套用布3米，还可以做儿童服装多少套？
<gadget id="calculator">5 * 180</gadget>
<output>900</output>

<gadget id="calculator">1_200 - 900</gadget>
<output>300</output>

<gadget id="calculator">300 / 3</gadget>
<output>100</output>

<result>100</result>