The third-grade book corner originally had 218 books, 89 books were lent out, and 67 books were returned. How many books are there?
三年级图书角原有图书218本，借出89本，还回67本．现有图书多少本？
<gadget id="calculator">218 - 89</gadget>
<output>129</output>

<gadget id="calculator">129 + 67</gadget>
<output>196</output>

<result>196</result>