This year's Arbor Day, 34 people from class 3 and 2 and 38 people from class 3 and 3 went to plant trees together. If each person can plant 2 trees, how many trees can they plant in total?
今年植树节，三2班34人和三3班38人一起去植树，如果每人能植2棵树，一共可以植多少棵树？
<gadget id="calculator">2 * 34</gadget>
<output>68</output>

<gadget id="calculator">2 * 38</gadget>
<output>76</output>

<gadget id="calculator">68 + 76</gadget>
<output>144</output>

<result>144</result>