Lan Lan bought a pencil, spent 4.45 yuan, and spent 9 yuan to buy a pen, how much did she spend in total?
兰兰买一支铅笔，用去了4.45元，又用9元买一支钢笔，一共用了多少元？
<gadget id="calculator">4.45 + 9</gadget>
<output>13.45</output>

<result>13.45</result>