Fangfang's home is 2,000 meters away from the school. She goes to school in the morning, eats at school at noon, and returns home after school in the afternoon. How many kilometers does she have to walk a day?
芳芳家离学校2000米，她早上去上学，中午在学校吃饭，下午放学回家，她一天要走多少千米？
<gadget id="calculator">2_000 + 2_000</gadget>
<output>4_000</output>

<gadget id="calculator">4_000 / 1_000</gadget>
<output>4</output>

<result>4</result>