The price of a copy of "Children's Cartoon" is 2.4 yuan, and the price of a dictionary is 6.6 yuan. Xiao Ming took 10 yuan to buy a copy of "Children's Cartoon" and a dictionary, how much money is left.
一本《少儿卡通》的价格是2.4元，一本字典的价格是6.6元，小明拿了10元钱买了一本《少儿卡通》和一本字典，还剩多少元．
<gadget id="calculator">2.4 + 6.6</gadget>
<output>9</output>

<gadget id="calculator">10 - 9</gadget>
<output>1</output>

<result>1</result>