The fourth grade students participated in the tree planting activity, and each planted 5 trees. 24 people participated in Class 4 1, and 16 people participated in Class 4 2. How many trees did the two classes plant in total? (Answer in two ways) 6 points.
四年级学生参加植树活动，每人种树5棵．四1班有24人参加，四2班有16人参加．两个班一共种树多少棵？(用两种方法解答)6分．
<gadget id="calculator">24 * 5</gadget>
<output>120</output>

<gadget id="calculator">16 * 5</gadget>
<output>80</output>

<gadget id="calculator">120 + 80</gadget>
<output>200</output>

<result>200</result>