The students went to plant trees. The fifth grade has 3 classes with 44 students in each class; the fourth grade has 3 classes with 46 students in each class. How many people went to the fourth and fifth grades?
同学们去植树，五年级有3个班，每班44人；四年级有3个班，每班46人．四、五年级一共去了多少人？
<gadget id="calculator">44 * 3</gadget>
<output>132</output>

<gadget id="calculator">46 * 3</gadget>
<output>138</output>

<gadget id="calculator">132 + 138</gadget>
<output>270</output>

<result>270</result>