Xiaojing read a 194-page math storybook, and read an average of 35 pages a day in the first 4 days. I plan to read the rest in 3 days, how many pages do I need to read on average every day?
小静看一本194页的数学故事书，前4天平均每天看35页．剩下的打算用3天看完，平均每天还要看多少页？
<gadget id="calculator">35 * 4</gadget>
<output>140</output>

<gadget id="calculator">194 - 140</gadget>
<output>54</output>

<gadget id="calculator">54 / 3</gadget>
<output>18</output>

<result>18</result>