The furniture factory ordered 400 square logs. The cross-sectional area of each square log is 20 square decimeters and the length is 2 meters. How many cubic meters are these logs in total?
家具厂订购400根方木，每根方木横截面积是20平方分米，长2米，这些木料一共多少立方米？
<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) * 2 * 400</gadget>
<output>160</output>

<result>160</result>