Tutu read 93 pages of books in 3 days, and 245 pages of books in a week every day. How many pages did Tutu read less on average every day than every day?
图图3天看93页书，天天一周看了245页书，图图平均每天比天天少看多少页书？
<gadget id="calculator">245 / 7</gadget>
<output>35</output>

<gadget id="calculator">93 / 3</gadget>
<output>31</output>

<gadget id="calculator">35 - 31</gadget>
<output>4</output>

<result>4</result>