If the surface area of a cube is 24 square meters, if the length of each side is increased by 1 meter, the volume will be increased by how many cubic meters.
一个正方体的表面积是24平方米，如果棱长各增加1米，则体积增加了多少立方米．
<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">3 ** 3</gadget>
<output>27</output>

<gadget id="calculator">2 ** 3</gadget>
<output>8</output>

<gadget id="calculator">27 - 8</gadget>
<output>19</output>

<result>19</result>