There are 65 boys in the fourth grade, and 80 girls are twice as many as boys. How many students are there in the fourth grade?
四年级有男生65人，女生的人数比男生的2倍少80人，四年级学生共有多少人？
<gadget id="calculator">65 * 2</gadget>
<output>130</output>

<gadget id="calculator">130 - 80</gadget>
<output>50</output>

<gadget id="calculator">50 + 65</gadget>
<output>115</output>

<result>115</result>