There are 84 poplar trees in the campus, and the number of pine trees is 12 times more than that of poplar trees. How many more pine trees are there than poplar trees?
校园里有杨树84棵，松树的棵数比杨树的2倍多12棵，松树比杨树多多少棵？
<gadget id="calculator">84 * 2</gadget>
<output>168</output>

<gadget id="calculator">12 - 84</gadget>
<output>-72</output>

<gadget id="calculator">168 + (-72)</gadget>
<output>96</output>

<result>96</result>