A book has 260 pages. Xiao Ming reads 12 pages every day. He has read them for 5 days, and wants to finish the rest in 10 days. How many pages do you read on average per day?
一本书有260页，小明每天看12页，已经看了5天，剩下的想10天看完．平均每天看多少页？
<gadget id="calculator">12 * 5</gadget>
<output>60</output>

<gadget id="calculator">260 - 60</gadget>
<output>200</output>

<gadget id="calculator">200 / 10</gadget>
<output>20</output>

<result>20</result>