A cuboid wooden box without a cover, the thickness of the board is 3 cm, measured from the outside, the length is 46 cm, the width is 31 cm, and the height is 33 cm. What is the volume of this wooden box in cubic decimeters?
一个无盖的长方体木箱，木板的厚度是3厘米，从外面量，长46厘米、宽31厘米、高33厘米．这木箱的容积是多少立方分米？
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">46 - 6</gadget>
<output>40</output>

<gadget id="calculator">31 - 6</gadget>
<output>25</output>

<gadget id="calculator">33 - 3</gadget>
<output>30</output>

<gadget id="calculator">30 / 1_000</gadget>
<output>3/100 = around 0.03</output>

<gadget id="calculator">40 * 25 * (3/100)</gadget>
<output>30</output>

<result>30</result>