On the first day, Xiao Ming bought 10 pencils and used half of the money in his pocket. On the second day, he used the money left over from buying pencils yesterday to buy a math homework book and used half of it. Now Xiao Ming has left Bet 1.2 yuan, how much money does Xiao Ming have in total?
第一天小明买了10支铅笔，用了他口袋里的钱的一半，第二天他又用昨天买铅笔剩下的钱买了一本数学作业本，又用了一半，现在小明还剩下1.2元，小明一共有多少元钱？
<gadget id="calculator">1.2 * 2 * 2</gadget>
<output>4.8</output>

<result>4.8</result>