If the side length of a cube is changed from 5 cm to 8 cm, the surface area increases by how many square centimeters.
一个正方体的棱长由5厘米变成8厘米，表面积增加了多少平方厘米．
<gadget id="calculator">8 * 8 * 6</gadget>
<output>384</output>

<gadget id="calculator">5 * 5 * 6</gadget>
<output>150</output>

<gadget id="calculator">384 - 150</gadget>
<output>234</output>

<result>234</result>