A cuboid bunker is 4 meters long, 2.5 meters wide, and 4 decimeters deep. If 2.5 cubic meters of sand are evenly spread in the bunker, how deep is the sand?
一个长方体沙坑长4米，宽2.5米，深4分米，把2.5立方米的沙子均匀铺在沙坑内，沙子深多少分米？
<gadget id="calculator">4 * 10 * 2.5 * 10</gadget>
<output>1_000</output>

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

<gadget id="calculator">2.5 * 1</gadget>
<output>2.5</output>

<result>2.5</result>