On "Six • One" Children's Day, 20% discount on books at Xinhua Bookstore. The original price of "Five Thousand Years of Up and Down" is 78 yuan, and the original price of "One Hundred Thousand Whys of Children" is 60 yuan. How much should Xiaoming pay for these two books on June 1st?
"六•一"儿童节那天，新华书店图书优惠20%．《上下五千年》原价78元，《儿童十万个为什么》原价60元，小明"六•一"节这天买这两本书，应该付多少钱？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">78 * (4/5)</gadget>
<output>312/5 = around 62.4</output>

<gadget id="calculator">60 * (4/5)</gadget>
<output>48</output>

<gadget id="calculator">(312/5) + 48</gadget>
<output>552/5 = around 110.4</output>

<result>552/5 = around 110.4</result>