The factory made a total of 45 teddy bears, and gave 15 to the kindergarten. The rest were distributed to the 3 classes of the first grade on average. How many can each class get?
工厂一共做了45个玩具熊，送给幼儿园15个，剩下的平均分给一年级3个班，每班可分得几个？
<gadget id="calculator">45 - 15</gadget>
<output>30</output>

<gadget id="calculator">30 / 3</gadget>
<output>10</output>

<result>10</result>