"Six One" Children's Day bookstore offers discounted books, all books are 20% off. Li Fang bought two books, priced at 32 yuan and 18 yuan respectively. How much did Li Fang spend in total?
"六一"儿童节书店优惠售书，所有图书一律八折出售．李芳买了两本书，标价分别为32元和18元．李芳一共花多少元？
<gadget id="calculator">32 + 18</gadget>
<output>50</output>

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

<gadget id="calculator">50 * (4/5)</gadget>
<output>40</output>

<result>40</result>