300 pairs of sneakers are packed in 2 wooden boxes and 6 cartons. If 2 cartons are the same as 1 wooden box of sneakers, think about it: how many pairs of sneakers are in each carton.
300双球鞋，分别装在2个木箱和6个纸箱里．如果2个纸箱同1个木箱装的球鞋一样多想一想：每个纸箱装多少双球鞋．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">300 / 5</gadget>
<output>60</output>

<gadget id="calculator">60 / 2</gadget>
<output>30</output>

<result>30</result>