After dividing a cuboid into two smaller cubes, the surface area increases by 64 square decimeters. What is the original surface area of the cuboid?
把一个长方体平均分成2个小正方体后，表面积比原来增加了64平方分米，原来这个长方体的表面积是多少平方分米？
<gadget id="calculator">64 / 2</gadget>
<output>32</output>

<gadget id="calculator">32 * 10</gadget>
<output>320</output>

<result>320</result>