Xiao Ming goes to the bookstore, buys a dictionary for 20.6 yuan, and also buys a "Youth Encyclopedia", which is 8.15 yuan more than three times the price of the dictionary. How much did Xiao Ming spend on buying books?
小明去书店，买了一本字典用20.6元，还买了一本《少年百科全书》，《少年百科全书》比字典的3倍还贵8.15元，小明买书共花多少钱？
<gadget id="calculator">20.6 * 3</gadget>
<output>61.8</output>

<gadget id="calculator">61.8 + 8.15</gadget>
<output>69.95</output>

<result>69.95</result>