When two cubes with side lengths of 5 cm are put together to form a cuboid, the surface area is reduced by how many square centimeters from the sum of the surface areas of the original two cubes.
把2个棱长为5厘米的正方体拼成一个长方体后，表面积比原来2个正方体表面积的总和减少了多少平方厘米．
<gadget id="calculator">5 * 5 * 2</gadget>
<output>50</output>

<result>50</result>