Starting from Xiao Min's home, he walked 300m eastward from his home, and then 600m westward, what is the distance in m from Xiaomin's home at this time?
以小敏家为起点，他从家向东走了300m，又向西走了600m，这时小敏离家距离是多少m．
<gadget id="calculator">600 - 300</gadget>
<output>300</output>

<result>300</result>