A rectangular steel billet with a length of 20 cm is forged into a rectangular steel billet with a length of 10 cm and a width of 2.5 cm. What is the height of this rectangular billet in cm? (solution by equation)
把一块棱长是20cm的正方体钢坯锻造成长是10cm，宽是2.5cm的长方体钢坯，这块长方体钢坯的高是多少cm？(用方程解)
<gadget id="calculator">20 * 20 * 20</gadget>
<output>8_000</output>

<gadget id="calculator">10 * 2.5</gadget>
<output>25</output>

<gadget id="calculator">8_000 / 25</gadget>
<output>320</output>

<result>320</result>