There are 110 students in the fifth grade, of which 92 participated in the Chinese group, 51 participated in the English group, 58 participated in the mathematics group, 80 students participated in at least 2 groups, and 20 students participated in 3 study groups. So how many people in the fifth grade did not participate in the study group?
五年级共有110人，其中92人参加了语文小组，51人参加了英语小组，58人参加了数学小组，至少参加2个小组的有80人，参加了3个学习小组的有20人．那么五年级有多少人没有参加学习小组？
<gadget id="calculator">80 + 20</gadget>
<output>100</output>

<gadget id="calculator">58 - 100</gadget>
<output>-42</output>

<gadget id="calculator">92 + 51 + (-42)</gadget>
<output>101</output>

<gadget id="calculator">110 - 101</gadget>
<output>9</output>

<result>9</result>