The volume of a cone is 12m**3, which is smaller than the volume of a cylinder with the same base and height by how much m**3.
一个圆锥的体积是12m**3，比与它等底等高的圆柱的体积小多少m**3．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">12 * 2</gadget>
<output>24</output>

<result>24</result>