Lan Lan and 3 children folded stars, a total of 36 stars were folded, and the average number of stars was folded by each person.
兰兰和3个小朋友折星星，一共折了36个，平均每人折多少个．
<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">36 / 4</gadget>
<output>9</output>

<result>9</result>