A cube of iron with a length of 20 cm is melted and cast into a cuboid with a length of 25 cm and a width of 16 cm. How high is the cuboid? (Solution of column equation)
把一个长20cm的正方体铁块，熔铸成一个长25cm，宽16cm的长方体，这个长方体有多高？(列方程解)
<gadget id="calculator">20 * 20 * 20</gadget>
<output>8_000</output>

<gadget id="calculator">25 * 16</gadget>
<output>400</output>

<gadget id="calculator">8_000 / 400</gadget>
<output>20</output>

<result>20</result>