Make a cuboid iron box with a length of 5 cm, a width of 4.5 cm, and a height of 4 cm. Make 100 such cartons and put them into a large carton. How many cubic decimeters should the carton have?
做一种长方体的铁盒，长5厘米，宽4.5厘米，高4厘米，做100个这样的纸盒装入一个大纸箱，这个纸箱的容积要多少立方分米？
<gadget id="calculator">100 / 1_000</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">5 * 4.5 * 4 * (1/10)</gadget>
<output>9</output>

<result>9</result>