After cutting a small cuboid with a volume of 80 cubic centimeters from a cuboid, what is left is a cube with an edge length of 4 cm. What is the length of the cut small cuboid in centimeters?
从一个长方体上截下一个体积是80立方厘米的小长方体后，剩下的是一个棱长4厘米的正方体，截下的小长方体长多少厘米．
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">80 / 16</gadget>
<output>5</output>

<result>5</result>