Xiao Ming wants to buy "Chinese Dictionary" for 65 yuan and "English-Chinese Dictionary" for 80 yuan, which coincides with the "20% off" sale in bookstores. How much money can he save?
小明想买《汉语词典》65元和《英汉词典》80元，恰逢书店"八折"销售，他能省下多少钱？
<gadget id="calculator">65 + 80</gadget>
<output>145</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">145 * (1/5)</gadget>
<output>29</output>

<result>29</result>