Naughty read a 312-page "Fairy Tale" during the summer vacation, and read an average of 16 pages a day for 12 days. The rest will take 5 days to read. How many pages do you read on average per day?
淘气在暑假里看一本312页的《童话故事》，平均每天看16页，已经看了12天．剩下的要5天看完，平均每天要看多少页？
<gadget id="calculator">12 * 16</gadget>
<output>192</output>

<gadget id="calculator">312 - 192</gadget>
<output>120</output>

<gadget id="calculator">120 / 5</gadget>
<output>24</output>

<result>24</result>