Lili wanted to help her mother move 156 old books downstairs. From 8:30 in the morning to 9:00, she only moved 48 books, and the rest moved 12 books each time. How many more times will she have to move?
丽丽想帮妈妈把156本旧书搬到楼下，从早上8：30开始到9：00才搬了48本，剩下的每次搬12本，还要搬几次才能搬完？
<gadget id="calculator">156 - 48</gadget>
<output>108</output>

<gadget id="calculator">108 / 12</gadget>
<output>9</output>

<result>9</result>