The school library originally had 975 popular science books, of which 382 were borrowed and 183 new books were purchased. How many popular science books are there in the library now?
学校图书室原有科普书975本，借出382本，又购买新书183本．现在图书室有科普书多少本？
<gadget id="calculator">975 - 382</gadget>
<output>593</output>

<gadget id="calculator">593 + 183</gadget>
<output>776</output>

<result>776</result>