Xiaohua spent 6.8 yuan on the exercise book, and now he has 3.2 yuan left. How much money did he have?
小华买练习本用去了6.8元，他现在还剩3.2元钱，他原来有多少钱？
<gadget id="calculator">6.8 + 3.2</gadget>
<output>10</output>

<result>10</result>