The students planted trees. The fourth grade planted 32 trees, and the fifth grade planted 7 trees three times more than the fourth grade. How many more trees are planted in fifth grade than in fourth grade?
同学们栽树，四年级栽了32棵，五年级栽的棵数比四年级的3倍多7棵．五年级比四年级多栽多少棵？
<gadget id="calculator">32 * 3</gadget>
<output>96</output>

<gadget id="calculator">7 - 32</gadget>
<output>-25</output>

<gadget id="calculator">96 + (-25)</gadget>
<output>71</output>

<result>71</result>