Use a batch of paper to bind exercise books of the same size. If each book has 18 sheets, 200 books can be bound. If each book has 2 fewer sheets than the original one, how many books can be bound?
用一批纸装订成同样大小的练习本，如果每本18张，可以装订200本，如果每本比原来少装订2张，可以装订多少本？
<gadget id="calculator">200 * 18</gadget>
<output>3_600</output>

<gadget id="calculator">18 - 2</gadget>
<output>16</output>

<gadget id="calculator">3_600 / 16</gadget>
<output>225</output>

<result>225</result>