The length of the cuboid is 5cm, the width is 2cm, and the height is 3cm, what is the volume of the cuboid in cm**3.
长方体的长是5cm，宽是2cm，高是3cm，则这个长方体的体积为多少cm**3．
<gadget id="calculator">5 * 2 * 3</gadget>
<output>30</output>

<result>30</result>