A square square with a side length of 100 meters. The uncle runs along the square for 5 weeks every day. How many meters does the uncle run every day?
一个正方形的广场，边长100米，大叔每天沿广场跑5周，大叔每天大约跑多少米．
<gadget id="calculator">100 * 4 * 5</gadget>
<output>2_000</output>

<result>2_000</result>