Class Four 1 has 50 people, each person plants 4 trees, Class Four 2 has 48 people, each person plants 3 trees, how many trees are planted in total by the two classes?
四1班有50人，每人植树4棵，四2班有48人，每人植树3棵，两班一共植树多少棵？
<gadget id="calculator">50 * 4</gadget>
<output>200</output>

<gadget id="calculator">48 * 3</gadget>
<output>144</output>

<gadget id="calculator">200 + 144</gadget>
<output>344</output>

<result>344</result>