There are 106 boys in the third grade, and the number of girls is twice that of boys. How many students are there in the third grade?
三年级共有106名男生，女生的人数是男生的2倍，三年级共有多少名学生？
<gadget id="calculator">106 * 2</gadget>
<output>212</output>

<gadget id="calculator">212 + 106</gadget>
<output>318</output>

<result>318</result>