Pour 24 cubic decimeters of water into a rectangular parallelepiped glass tank with a length of 3 decimeters, a width of 2 decimeters, and a height of 6 decimeters. How many decimeters is the water surface from the mouth of the tank?
把24立方分米的水倒入一个长3分米，宽2分米，高6分米的长方体玻璃缸内，水面距缸口有多少分米．
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">24 / 6</gadget>
<output>4</output>

<gadget id="calculator">6 - 4</gadget>
<output>2</output>

<result>2</result>