Two identical cuboids fit together exactly to form a cube, and the surface area of the cube is 30 square centimeters. If these two cuboids are put together to form a cuboid, what is the surface area of the large cuboid in square centimetres?
两个完全相同的长方体恰好拼成一个正方体，正方体的表面积是30平方厘米．如果把这两个长方体拼成一个长方体，那么大长方体的表面积是多少平方厘米．
<gadget id="calculator">30 / 6</gadget>
<output>5</output>

<gadget id="calculator">5 * 2 * 2</gadget>
<output>20</output>

<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">(5/2) * 4 * 2</gadget>
<output>20</output>

<gadget id="calculator">(5/2) * 2</gadget>
<output>5</output>

<gadget id="calculator">20 - 5</gadget>
<output>15</output>

<gadget id="calculator">20 + 15</gadget>
<output>35</output>

<result>35</result>