A book has 120 pages. Xiao Ming reads 18 pages on average every day in the first 3 days, and plans to finish the rest in 6 days. How many pages should he read on average every day?
一本书120页，小明前3天平均每天看18页，剩下的打算6天看完，平均每天应看多少页？
<gadget id="calculator">3 * 18</gadget>
<output>54</output>

<gadget id="calculator">120 - 54</gadget>
<output>66</output>

<gadget id="calculator">66 / 6</gadget>
<output>11</output>

<result>11</result>