Lan Lan walked 2 times on the way to school in the morning, a total of 140 meters, how many meters is it from Lan Lan's home to school?
兰兰上午上学路上走了2个来回，共走了140米，兰兰家到学校有多少米．
<gadget id="calculator">140 / 4</gadget>
<output>35</output>

<result>35</result>