Xiaohua and Xiaolin have 12 pencils in total, and Xiaogang and Xiaohong have 20 pencils in total. How many pencils do they have on average?
小华、小林，共有12支铅笔，小刚和小红共有20支铅笔，他们平均每人有多少支铅笔？
<gadget id="calculator">12 + 20</gadget>
<output>32</output>

<gadget id="calculator">2 + 2</gadget>
<output>4</output>

<gadget id="calculator">32 / 4</gadget>
<output>8</output>

<result>8</result>