There are 210 fairy tale books and 335 children's novels in the school library. How many more children's novels than fairy tale books?
学校图书室里童话书有210本、儿童小说有335本．儿童小说比童话书多多少本？
<gadget id="calculator">335 - 210</gadget>
<output>125</output>

<result>125</result>