Lili bought two books. "Language Study Guide" is 16.28 yuan, which is 3.25 yuan cheaper than "Chinese Handbook". How much does Lili pay?
丽丽买了两本书．《语文学习指导》16.28元，比《语文手册》便宜3.25元．丽丽应付多少钱？
<gadget id="calculator">16.28 - 3.25</gadget>
<output>13.03</output>

<gadget id="calculator">13.03 + 16.28</gadget>
<output>29.31</output>

<result>29.31</result>