The length of a cuboid is 5cm, the width is 45cm, and the height is 24cm. After cutting along its length and width, how many square centimeters will the surface increase?
一个长方体的长是5cm，宽是45cm，高是24cm，沿它的长和宽各切一次后，表面增加了多少平方厘米？
<gadget id="calculator">5 * 24</gadget>
<output>120</output>

<gadget id="calculator">120 * 2</gadget>
<output>240</output>

<gadget id="calculator">45 * 24</gadget>
<output>1_080</output>

<gadget id="calculator">1_080 * 2</gadget>
<output>2_160</output>

<gadget id="calculator">240 + 2_160</gadget>
<output>2_400</output>

<result>2_400</result>