neat stack of exercise books is placed on the table, occupying an area of 450cm**2. If the height of the stack of exercise books is 22 cm, how many cubic centimeters does it occupy?
一摞整齐的练习本放在桌上，占去桌面面积450cm**2．如果这摞练习本的高是22cm，那么它所占的空间是多少立方厘米？
<gadget id="calculator">450 * 22</gadget>
<output>9_900</output>

<result>9_900</result>