How much will Xiao Ming pay for 20 80-cent stamps and 30 6-cent stamps?
小明买20枚8角的邮票和30枚6角的邮票，一共要付多少钱？
<gadget id="calculator">8 * 20</gadget>
<output>160</output>

<gadget id="calculator">6 * 30</gadget>
<output>180</output>

<gadget id="calculator">160 + 180</gadget>
<output>340</output>

<gadget id="calculator">340 / 10</gadget>
<output>34</output>

<result>34</result>