There are 4 bookshelves in the library of Hope Primary School. There are 285 books on each shelf, and 386 books have been borrowed. How many books are left?
希望小学图书室有4个书架，每个书架上上都放了285本书，借出386本，还剩多少本？
<gadget id="calculator">285 * 4</gadget>
<output>1_140</output>

<gadget id="calculator">1_140 - 386</gadget>
<output>754</output>

<result>754</result>