Pour 144 liters of water into a cube container with a side length of 6 decimeters. What is the height of the water surface in decimeters?
把144升的水倒人一个棱长6分米的正方体容器里，水面高多少分米．
<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<gadget id="calculator">144 / 36</gadget>
<output>4</output>

<result>4</result>