There are 360 story books distributed to 3 classes, 120 to class 1, and the rest are divided equally to class 2 and class 3. How many books are distributed to class 2?
有360本故事书分给3个班，分给一班120本，其余平均分给二班和三班，二班分到几本？
<gadget id="calculator">360 - 120</gadget>
<output>240</output>

<gadget id="calculator">240 / 2</gadget>
<output>120</output>

<result>120</result>